Well before you get started on that I should mention that it’s incredibly intense, and you shouldn’t start it unless you’re conditioned. And if you do start, start gradually, i.e. don’t tighten each clamp as tight as you can.
I place all clamps completely together… seems to be the best way… all at the base.
I’ve had trouble getting midshaft girth (but still have), but my base girth has increased over an inch, and I’m sure it’s mostly from triple clamping.