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I believe you said you're in Houston. If so, you might want to check out Shiloh Shooting Range on Shiloh Church Road (FM 1960 & SH 249 area). They have competition shooting on Thursday evenings (USPSA on the first and last Thursday, and IDPA on the other Thursdays).

They also have classes on Sunday nights (normally the 2nd and 3rd Sunday) which can be very helpful - draw from holster, low light, strong/weak hand, etc.

As it happens, there is a class tonight (11/25) at Shiloh - starts at 6:15pm and costs $35. You'll need about 100 rounds for the class if you decide to come. It's a good class and typically about 8-10 people show up for it.