Leather OWB Thumb Release?

Hi all,Was wondering if anyone had any suggestions for a leather OWB holster with a thumb release. Essentially, what I'm looking for is the Safariland ALS system where you just push down/back on the thumb release as you're drawing. The problem is that it only comes in a Kydex version. I know they have the GLS where you use your middle finger, but I'm really looking for thumb. I found the DeSantis ChekMate where you push towards the outside with your thumb (preferably you would push back) but I can't really find any reviews of it post 2008. Any help would be appreciated.Thanks via /r/CCW http://bit.ly/2UXTk6u