So after mounting this setup (thorntail/streamlight pro-tac) and the TLR -1 HL, the Thornsdale mount wins hands down. There's just not enough rail space below, which is where the TLR 1 needs to go on my pistol.
After deciding on the Thornsdal/pro-tac I configured them several different ways in an effort to minimize the shadow from the suppressor. This is what I ended up with, and, it's not only pretty darn ideal but it I think it looks really good too.
What do you guys think?