diff --git a/core/models_caves.py b/core/models_caves.py
index 11aa24a..a6b44c7 100644
--- a/core/models_caves.py
+++ b/core/models_caves.py
@@ -203,11 +203,9 @@ class Cave(TroggleModel):
 
 def getCaveByReference(reference):
     areaname, code = reference.split("-", 1)
-    #print(areaname, code)
     area = Area.objects.get(short_name = areaname)
-    #print(area)
     foundCaves = list(Cave.objects.filter(area = area,  kataster_number = code).all()) + list(Cave.objects.filter(area = area,  unofficial_number = code).all())
-    print((list(foundCaves)))
+    #print((list(foundCaves)))
     if len(foundCaves) == 1:
         return foundCaves[0]
     else:
diff --git a/parsers/survex.py b/parsers/survex.py
index 5f23c5c..ebf1cb0 100644
--- a/parsers/survex.py
+++ b/parsers/survex.py
@@ -162,7 +162,7 @@ def RecursiveLoad(survexblock, survexfile, fin):
     global callcount
     global survexlegsnumber
 
-    print(insp+"  - MEM:{} Reading. parent:{}  <> {} ".format(get_process_memory(),survexblock.survexfile.path,survexfile.path))
+    print(insp+"  - MEM:{:.3f} Reading. parent:{}  <> {} ".format(get_process_memory(),survexblock.survexfile.path,survexfile.path))
     stamp = datetime.now()
     lineno = 0
     
@@ -181,6 +181,8 @@ def RecursiveLoad(survexblock, survexfile, fin):
             survexfile.cave = cave
     svxlines = ''
     svxlines = fin.read().splitlines()
+    # cannot close file now as it may be recursively called with the same file id fin if nested *begin
+    # occurs. 
     for svxline in svxlines:
         lineno += 1
         # break the line at the comment
@@ -341,20 +343,23 @@ def RecursiveLoad(survexblock, survexfile, fin):
                 survexblockdown.save()
                 survexblock.save()
                 survexblock = survexblockdown
+                print(insp+"   - ENTERING nested *begin/*end block: {}".format(name))
                 insp += "> "
                 RecursiveLoad(survexblockdown, survexfile, fin)
                 #--------------------------------------------------------
                 # do not close the file as there may be more blocks in this one
+                # and it is re-read afresh with every nested begin-end block.
                 insp = insp[2:]
             else:
                 iblankbegins += 1
 
         elif re.match("end$(?i)", cmd):
             if iblankbegins:
+                print(insp+"   - RETURNING from nested *begin/*end block: {}".format(line))
                 iblankbegins -= 1
             else:
                 legsinblock = survexlegsnumber - previousnlegs
-                print(insp+"LEGS: {} (previous: {}, now:{})".format(legsinblock,previousnlegs,survexlegsnumber))
+                print(insp+"  - LEGS: {} (previous: {}, now:{})".format(legsinblock,previousnlegs,survexlegsnumber))
                 survexblock.legsall = legsinblock
                 survexblock.save()
                 endstamp = datetime.now()