I shot one IDPA match, with a G23 in the SSP class and a G30 in the Back-up.
I won the marksman Class, and the only person at the match with a faster score with am expert with a Glock also.
I came in second in the back-up match, missing out by fractions to the same Expert with Glock.
Also, every GSSF match I have ever been to has been won by a Glock