I don't have a Trojan so I'm not 100% certain, but I think the slide and dust cover profiles are the same as a standard 1911 so it shouldn't be a problem. if it is a little tight the leather will stretch some. now for the 2011s or those models with a heavy or full dust cover the holster will need to be custom made. I know my Ranger (have yet to carry it) fits fine but the VIP won't.
Tim
Tim