diff --git a/parsers/survex.py b/parsers/survex.py
index 96b0875..dd4fcd3 100644
--- a/parsers/survex.py
+++ b/parsers/survex.py
@@ -26,8 +26,6 @@ todo = """
   easier to understand and maintain
   https://mathspp.com/blog/til/re-match-groupdict
   
-- replace hard-coded instuments list with reading an editable textfile in expoweb.
-
 - Obscure bug in the *team inheritance and rootblock initialization needs tracking down,
   probably in the team cache which should NOT be global, but should be an instance variable of 
   LoadingSurvex
@@ -737,7 +735,6 @@ class LoadingSurvex:
         splayalias = re.match(r"(?i)\s*station\s*\-\s*\.\.\s*$", line)
         if splayalias:
             self.flagsstar["splayalias"] = True
-            print(f"==splayalias {line} in {survexblock=} {survexblock.survexfile.path=}")
         else:
             message = f"! Bad *ALIAS: '{line}' ({survexblock}) {survexblock.survexfile.path}"
             print(self.insp + message)
@@ -1660,7 +1657,7 @@ class LoadingSurvex:
         refline = self.rx_commref.match(comment)
         if refline:
             comment = self.rx_ref2.sub("", comment.strip())
-            print(f"{self.depthbegin:2}{depth}   - rx_ref2 -- {comment=} in {survexblock.survexfile.path} :: {survexblock}")
+            # print(f"{self.depthbegin:2}{depth}   - rx_ref2 -- {comment=} in {survexblock.survexfile.path} :: {survexblock}")
             self.LoadSurvexRef(survexblock, comment)
 
         # handle
@@ -1947,7 +1944,7 @@ class LoadingSurvex:
                     message=message,
                 )
             else:
-                if cmd not in ["equate", "export", "instrument", "calibrate", "cs", "require", "declination", "infer", "case"]:
+                if cmd not in ["equate", "export", "instrument", "calibrate", "cs", "require", "declination", "infer", "case", "sd"]:
                     print(f"FALLTHROUGH *{cmd=} {survexblock=} {survexblock.parent=}")
                 self.LoadSurvexFallThrough(survexblock, args, cmd)