I mainly use a Desantis Speed Scabbard which has been working well so far for me. It depends mainly on what kind of holster you're looking for
I just got myself an STI Trojan a couple weeks ago and I am wondering what would be a good leather holster to get for it
Have you considered a good kydex? I used Milt Sparks leather for 20 years but recently switched to Raven Concealment which is just really excellent gear in combination with a Wilderness belt.
Regards,
Mark