S&W 642, H&K p2000sk, and Kahr pm9
All in comptac 2 oclock's at 12 o'clock.
I modify the belt clips slightly to raise the main body of the holster slightly.
When I sit I pull the holster slightly away initially as I sit.
It stops the top of the holster from pinching me. After the initial reposition, its perfectly comfortable.
I also have Mitch Rosen "the clipper" for 4 o'clock if wearing heavier clothing.
I prefer 12oclock.