"and these lose some of the machoness"
Holy smokes, I have not laughed that hard in a while.......look bro, while at home put it on different parts of you body and see what you can or can not reach (and see, try to look at your waist strap). This issue is full of opinions but the only one that matters is yours. Its funny that many people love mounting on the waist strap as opposed to the leg....ever try to re-sheath a waist mounted knife underwater? I have and it sucks. (are you tall, fat, short? all of our builds differ and mounting areas will differ also) It sucks hard, but if it works for someone...thats great, but it may not work for you...try all combos then you will know what is best for you
"One point we should all keep in mind is the Buddy, redundancy thing."
Even if you have a buddy, dive as if you are alone...