I like and own both a fullsize and cmndr. length 1911. Instead of purchasing both length of holsters I like to simply purchase the fullsize one and use it with both. Unfortunately, my fullsize is an earlier SA "loaded" model with the squarer and larger dimensioned dustcover. This has turned into a pain in the !@#! fulfilling my objective above. My cmndr. length is a Colt Cmbt Cmndr, which fits well into most or all of the holsters I've owned. The SA; however, is too tight a fit in many of the closely molded holsters (leather or kydex) I've tried it with.
I've recently tried out a holster that I may possibly order a fullsize version of. My questions are these - does anyone know the dimensional differences in the orig (Colt) spec dustcover and the earlier SA ones? If so, would it be possible to email them to me so I can send them to the maker, who doesn't have a orig handgun/model to use for reference? Also, am I correct in assuming that if the other molding in the holster is nicely done, this should work, i.e., the holster will give adequate retention for both 1911's?
Thanks for any opinions and info, including telling me I'm just cheap not to buy two separate holsters

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EricO