I had been using a horsehide Galco Ultimate Second Amendment (see a brief review here) holster while the Super-Tuck was back at the shop. It wasn't quite as comfortable, but it did work pretty decently.
UPDATE, 9/12/2010: New one cracked a couple months ago. The crack doesn't seem to be spreading, so I haven't done anything with it yet. I'll make my own with thicker Kydex someday.
UPDATE, 8/18/2012: The kydex holster body finally broke in two on Monday.
Crossbreed Super-Tuck Part 4