I am considering purchase of a pair (one at a time as the piggy bank can cover it) of 3 1/2 inch 97's in 45 Colt.  I would like them with fixed rear sights, dovetail replaceable front sights, round butt, 3 lb trigger, and ivory micarta.  I would like to use them for Cowboy Mounted Shooting Competition and for CCW on occasion.  First, does anyone know if 97's in this configuration would be CMSA legal?  I have requested an answer from CMSA via email, but have no response as yet.  Second who out there has 3 1/2 in 97's and in what caliber.  How do you like them, how do they handle and is it worth the difference from a 4 1/4 inch barrel?