diff --git a/proc/diskstats.c b/proc/diskstats.c
index 93b9abbf..8a56e945 100644
--- a/proc/diskstats.c
+++ b/proc/diskstats.c
@@ -769,7 +769,8 @@ PROCPS_EXPORT int procps_diskstats_new (
 
     /* do a priming read here for the following potential benefits: |
          1) ensure there will be no problems with subsequent access |
-         2) make delta results potentially useful, even if 1st time | */
+         2) make delta results potentially useful, even if 1st time |
+         3) elimnate need for history distortions 1st time 'switch' | */
     if ((rc = diskstats_read_failed(p))) {
         procps_diskstats_unref(&p);
         return rc;
diff --git a/proc/meminfo.c b/proc/meminfo.c
index cfcf5b02..9d7363ce 100644
--- a/proc/meminfo.c
+++ b/proc/meminfo.c
@@ -109,7 +109,6 @@ struct stacks_extent {
 struct meminfo_info {
     int refcount;
     int meminfo_fd;
-    int meminfo_was_read;
     int dirty_stacks;
     struct mem_hist hist;
     int numitems;
@@ -644,11 +643,6 @@ static int meminfo_read_failed (
     if (mHr(SwapFree) < mHr(SwapTotal))
         mHr(derived_swap_used) = mHr(SwapTotal) - mHr(SwapFree);
 
-    // let's not distort the deltas the first time thru ...
-    if (!info->meminfo_was_read) {
-        memcpy(&info->hist.old, &info->hist.new, sizeof(struct meminfo_data));
-        info->meminfo_was_read = 1;
-    }
     return 0;
  #undef mHr
 } // end: meminfo_read_failed
@@ -751,7 +745,8 @@ PROCPS_EXPORT int procps_meminfo_new (
 
     /* do a priming read here for the following potential benefits: |
          1) ensure there will be no problems with subsequent access |
-         2) make delta results potentially useful, even if 1st time | */
+         2) make delta results potentially useful, even if 1st time |
+         3) elimnate need for history distortions 1st time 'switch' | */
     if ((rc = meminfo_read_failed(p))) {
         procps_meminfo_unref(&p);
         return rc;
diff --git a/proc/slabinfo.c b/proc/slabinfo.c
index 921ec601..4dd28b85 100644
--- a/proc/slabinfo.c
+++ b/proc/slabinfo.c
@@ -121,7 +121,6 @@ struct fetch_support {
 struct slabinfo_info {
     int refcount;
     FILE *slabinfo_fp;
-    int slabinfo_was_read;
     int nodes_alloc;                   /* nodes alloc()ed */
     int nodes_used;                    /* nodes using alloced memory */
     struct slabs_node *nodes;          /* first slabnode of this list */
@@ -495,10 +494,6 @@ static int read_slabinfo_failed (
     else
         return -ERANGE;
 
-    if (!info->slabinfo_was_read) {
-        memcpy(&info->slabs.old, &info->slabs.new, sizeof(struct slabs_summ));
-        info->slabinfo_was_read = 1;
-    }
     return retval;
 } // end: read_slabinfo_failed
 
@@ -814,7 +809,8 @@ PROCPS_EXPORT int procps_slabinfo_new (
 
     /* do a priming read here for the following potential benefits: |
          1) see if that caller's permissions were sufficient (root) |
-         2) make delta results potentially useful, even if 1st time | */
+         2) make delta results potentially useful, even if 1st time |
+         3) elimnate need for history distortions 1st time 'switch' | */
     if ((rc = read_slabinfo_failed(p))) {
         procps_slabinfo_unref(&p);
         return rc;
diff --git a/proc/stat.c b/proc/stat.c
index 452860f6..758d983a 100644
--- a/proc/stat.c
+++ b/proc/stat.c
@@ -118,7 +118,6 @@ struct reap_support {
 struct stat_info {
     int refcount;
     int stat_fd;
-    int stat_was_read;                 // is stat file history valid?
     struct hist_sys sys_hist;          // SYS type management
     struct hist_tic cpu_hist;          // TIC type management for cpu summary
     struct reap_support cpus;          // TIC type management for real cpus
@@ -617,9 +616,6 @@ static int stat_read_failed (
         , &sum_ptr->new.guest, &sum_ptr->new.gnice))
             return -1;
     stat_derive_unique(sum_ptr);
-    // let's not distort the deltas the first time thru ...
-    if (!info->stat_was_read)
-        memcpy(&sum_ptr->old, &sum_ptr->new, sizeof(struct stat_jifs));
 
     i = 0;
 reap_em_again:
@@ -645,9 +641,6 @@ reap_em_again:
                 break;                   // we must tolerate cpus taken offline
         }
         stat_derive_unique(cpu_ptr);
-        // let's not distort the deltas the first time thru ...
-        if (!info->stat_was_read)
-            memcpy(&cpu_ptr->old, &cpu_ptr->new, sizeof(struct stat_jifs));
         ++i;
         ++cpu_ptr;
     } while (i < info->cpus.hist.n_alloc);
@@ -695,11 +688,6 @@ reap_em_again:
         sscanf(b,  "procs_running %llu", &llnum);
     info->sys_hist.new.procs_running = llnum;
 
-    // let's not distort the deltas the first time thru ...
-    if (!info->stat_was_read) {
-        memcpy(&info->sys_hist.old, &info->sys_hist.new, sizeof(struct stat_data));
-        info->stat_was_read = 1;
-    }
     return 0;
 } // end: stat_read_failed
 
@@ -939,7 +927,8 @@ PROCPS_EXPORT int procps_stat_new (
 
     /* do a priming read here for the following potential benefits: |
          1) ensure there will be no problems with subsequent access |
-         2) make delta results potentially useful, even if 1st time | */
+         2) make delta results potentially useful, even if 1st time |
+         3) elimnate need for history distortions 1st time 'switch' | */
     if ((rc = stat_read_failed(p))) {
         procps_stat_unref(&p);
         return rc;
diff --git a/proc/vmstat.c b/proc/vmstat.c
index 32671ebb..28bf624f 100644
--- a/proc/vmstat.c
+++ b/proc/vmstat.c
@@ -182,7 +182,6 @@ struct stacks_extent {
 struct vmstat_info {
     int refcount;
     int vmstat_fd;
-    int vmstat_was_read;
     int dirty_stacks;
     struct vmstat_hist hist;
     int numitems;
@@ -1029,11 +1028,6 @@ static int vmstat_read_failed (
         head = tail + 1;
     }
 
-    // let's not distort the deltas the first time thru ...
-    if (!info->vmstat_was_read) {
-        memcpy(&info->hist.old, &info->hist.new, sizeof(struct vmstat_data));
-        info->vmstat_was_read = 1;
-    }
     return 0;
 } // end: vmstat_read_failed
 
@@ -1135,7 +1129,8 @@ PROCPS_EXPORT int procps_vmstat_new (
 
     /* do a priming read here for the following potential benefits: |
          1) ensure there will be no problems with subsequent access |
-         2) make delta results potentially useful, even if 1st time | */
+         2) make delta results potentially useful, even if 1st time |
+         3) elimnate need for history distortions 1st time 'switch' | */
     if ((rc = vmstat_read_failed(p))) {
         procps_vmstat_unref(&p);
         return rc;