Wow, I had to read this thread 3 times to get a grip, now after reading it again and again, loading from the WEAK side, with the weak hand, having the index finger along the pointy end of the bullet makes sense, strong side or weak side, you don't have to twist the wrist, and think backwards, Bruce Gray pointed out that keeping the index finger over the bullet nose would prevent rounds from being stripped from the magazine by a missed chute drive, and although it has merit, I have never done it, and have not seen it done on the line. If right handed all the bullets should point clockwise, if left, then counter clockwise, forward and backward on a belt take on different aspects as you go in a circle.
I still may have not read it right, but I am trying to clarify.