diff --git a/src/save.c b/src/save.c
index 1b82aade..28f9f5a4 100644
--- a/src/save.c
+++ b/src/save.c
@@ -1534,7 +1534,7 @@ int plot_raw_custom_data(int sweep_idx, int first, int last, const char *expr, c
   }
   my_strdup2(_ALLOC_ID_, &ntok_copy, expr);
   ntok_ptr = ntok_copy;
-  dbg(0, "plot_raw_custom_data(): expr=%s, first=%d, last=%d\n", expr, first, last);
+  dbg(1, "plot_raw_custom_data(): expr=%s, first=%d, last=%d\n", expr, first, last);
   while( (n = my_strtok_r(ntok_ptr, " \t\n", "", 0, &ntok_save)) ) {
     if(stackptr1 >= STACKMAX -2) {
       dbg(0, "stack overflow in graph expression parsing. Interrupted\n");
@@ -1622,28 +1622,23 @@ int plot_raw_custom_data(int sweep_idx, int first, int last, const char *expr, c
       stack1[stackptr1].idx = idx;
       stackptr1++;
     }
-    dbg(0, "  plot_raw_custom_data(): stack1= %d\n", stack1[stackptr1 - 1].i);
   } /* while(n = my_strtok_r(...) */
   my_free(_ALLOC_ID_, &ntok_copy);
   for(p = first ; p <= last; p++) {
     stackptr2 = 0;
     for(i = 0; i < stackptr1; ++i) {
-       dbg(0, "\n    stackptr1=%d, stack1[i]i.i=%d   stackptr2=%d\n", i, stack1[i].i, stackptr2);
       if(stack1[i].i == NUMBER) { /* number */
-        dbg(0, "stackptr2=%d, number=%g\n", stackptr2,  stack1[i].d);
         stack2[stackptr2++] = stack1[i].d;
       }
       else if(stack1[i].i == IDX) {
         stack2[stackptr2++] = (double)p;
       }
       else if(stack1[i].i == SPICE_NODE && stack1[i].idx < xctx->raw->nvars) { /* spice node */
-        dbg(0, "stackptr2=%d, spice_node=%g\n", stackptr2, xctx->raw->values[stack1[i].idx][p]);
         stack2[stackptr2++] =  xctx->raw->values[stack1[i].idx][p];
       }
       if(stackptr2 > 1) { /* 2 argument operators */
         switch(stack1[i].i) {
           case PLUS:
-            dbg(0, "stackptr2=%d, +: %g %g\n", stackptr2, stack2[stackptr2 - 2], stack2[stackptr2 - 1]);
             stack2[stackptr2 - 2] = stack2[stackptr2 - 2] + stack2[stackptr2 - 1];
             stackptr2--;
             break;
@@ -1652,7 +1647,6 @@ int plot_raw_custom_data(int sweep_idx, int first, int last, const char *expr, c
             stackptr2--;
             break;
           case MULT:
-            dbg(0, "stackptr2=%d, *: %g %g\n", stackptr2, stack2[stackptr2 - 2], stack2[stackptr2 - 1]);
             stack2[stackptr2 - 2] = stack2[stackptr2 - 2] * stack2[stackptr2 - 1];
             stackptr2--;
             break;
@@ -1667,7 +1661,6 @@ int plot_raw_custom_data(int sweep_idx, int first, int last, const char *expr, c
             stackptr2--;
             break;
           case DEL:
-            /* dbg(0, "p=%d, x[p]=%g\n", p, x[p]);  */
             tmp = stack2[stackptr2 - 1];
             ravg_store(1, i, p, last, stack2[stackptr2 - 2]);
             if(fabs(x[p] - x[first]) <= tmp) {
@@ -1938,7 +1931,6 @@ int plot_raw_custom_data(int sweep_idx, int first, int last, const char *expr, c
             stack2[stackptr2 - 1] =  mylog(stack2[stackptr2 - 1]);
             break;
           case LOG10:
-            dbg(0, "stackptr2=%d, log10(): %g\n", stackptr2, stack2[stackptr2 - 1]);
             stack2[stackptr2 - 1] =  mylog10(stack2[stackptr2 - 1]);
             break;
           case DB20: