I have a DOH, but with the adjustable loop instead of teklok. same as Slim i use a CR speed belt. The loop is very tight on the belt and it does not move around at all. absolutely nothing wrong with the holster. the one i have is for a glock17, and im going to get the same setup for a 1911.
This is my only holster other than the ones that come with tt-33, Im sure someone who has both will chime in.
Quick edit: actually one thing about the bladetech doh, for me it does point the muzzle inward towards the leg. Dont pull the trigger when unholstering