I've been shooting IDPA for about a year and a half now. I have always intended to go once a month, but in practice, am only able to get to a match every-other month or so. It is admittedly somewhat anal, but I do a little statistical analysis of the results I get back. Now--there are some among the crowd that I normally shoot with who are very good (Rob Leatham occasionally shows up).
So, I am quite happy to report that I have improved to where I am almost average.