Howdy
I have always worn a straight draw holster hanging with the pistol butt forward on my left hip. I just like the appearance better, no other reason than that. I particularly dislike the appearance of a pistol hanging from a cross draw holster almost directly under the shooter's belly. Reminds me too much of those stupid belly packs that tourists carry their valuables in.
Don't have to "twist" as much to keepf rom breaking the 170 when drawing cause the barrel is pointing down instead of beck.
It may be true that you don't have to twist as much, but the motion of drawing from a straight hanging crossdraw holster is actually more awkward than drawing from a canted one. With it canted you simply pull straight across your body. With the straight hang you have to pull up and across. A straight hanging cross draw holster will almost always be slower because of this. And it is not comfortable to carry a straight draw holster directly in front on your belly. The holster hanging down impedes your motion when you walk. That is the other reason I wear my 7 1/2" Colt way over on my hip, the holster does not hang down and impede the motion of my leg. With a canted holster hanging in front of the belly you can walk more easily because the holster is canted out to the side and does interfere as much as a straight draw holster does when walking.
Despite all this, I much prefer to wear my second pistol slung all the way over on my hip, butt forward. It looks much better and there are much more important things than shooting fast. Looking good is one of them.