Its true, but in my experience, if you LOOK at 10 divers with a nice perfectly trimmed and streamlined configuration, the differences will be minimal.
Dunno what you call "minimal", but I can see major differences between let's say Edd Sorenson and Steve Martin...
I agree with part of what Stu said, namely: the necklace being too long, attaching the inflator a bit away.
I'd also have both reg hoses coming around the neck, with an angle adapter on one of them (short hose). The hose would most likely have to come out the "top" of the 1st stage though. Other reg is hog looped (just make sure you don't get everything entangled when you're doing the loop, else you'll look silly when doing an S-drill)