diff --git a/parsers/survex.py b/parsers/survex.py
index 74d085d..a50ab39 100644
--- a/parsers/survex.py
+++ b/parsers/survex.py
@@ -1655,16 +1655,6 @@ class LoadingSurvex:
         It _should_ recognise a non-numeric survey station ID, but currently doesn't.
         Valid QM types are [A-DvVxX?] A-D, V for Vertical, X for horrible and ? for unknown
         """
-        # rx_qm : r"(?i)^\s*QM(\d+)\s+?(.+)\s+([\w\-\_]+)(\.([\w\.\-]+)?)\s+(([\w\-]+)\.([\w\.\-]+)|\-)\s+(.+)$)
-        # This regex parses strings that start with "QM" followed by digits, then extracts several structured parts:
-        # (?i)        : Case-insensitive matching
-        # ^\s*        : Start of line, optional leading whitespace
-        # QM(\d+)     : "QM" followed by a digit sequence (capture group 1)
-        # \s+?(.+)    : Minimal spaces, then a descriptive text (capture group 2)
-        # \s+([\w\-_]+) : identifier prefix with word characters, hyphen or underscore (capture group 3)
-        # (\.([\w.\-]+)?) : identifier starting with a dot (capture group 4 and 5)
-        # \s+(([\w\-]+)\.([\w.\-]+)|\-?) : Either a pair of identifiers separated by a dot or an optional single dash (capture group 6, with 7 & 8 as subgroups)
-        # \s+(.+)$    : Remaining text at the end (e.g., comments or summary) (capture group 9)
         qmline = self.rx_qm.match(comment)
         if qmline:
             self.LoadSurvexQM(survexblock, qmline)