HD, I think its mostly because it makes it easier to sit with the knife, and such, cause the knife will not point straight down. <img src="/ubbthreads/images/graemlins/laugh.gif" alt="" /> there maybe be more though. idk.
I was thinking that, but I wasn't sure. I like swing sheaths on long knives. You can strap the sheath to your leg, and when you sit down, it moves with you. I also like the detachable frog style sheath, like the Crowell-Barker has, too.
thanks for the great replies guys...... the DF kydex belt loop is too stiff and thick for me....it is solid, but when i am bending or really doing anything (not that i have worn it that much <img src="/ubbthreads/images/graemlins/smile.gif" alt="" />)it does not want to move with me. my lanyard got it swinging and also lowered it so that i can tie it above my knee, not around my mid ham/quad area.