...and there goes another thread. I've had quite a few conversations with people about replying to threads when you're heated. The best answer is to leave it alone and come back when you can reply is a more level-headed manner, or not at all. I personally am sick of threads like these (informative ones) degrading into personal attacks. Digging up old pictures and posts to make a point? Come on guys, grow up.
On topic: on the subject of one polishing step, there was a long thread about that recently and there were good opinions on both sides of the debate. I think in the end a lot of what we're talking about relies heavily on understanding the other person and their experience, which is tough on forums. For me, I *will* one step polish a car with a rotary, but only under a few circumstances, as in, the car is in good enough shape the polishing is just to bring back some gloss (not to remove imperfections), or if it is to remove imperfections with the understanding (of the customer) that the car will not be 100% or even 90% corrected, but that the paint will look better. In some cases that is all someone wants; for example I am working on a GX470 right now that needs some good correction, but the owner just wants the paint cleaned up, to look more black again. His wife drives the truck so 95%+ correction would be wasted on it. I'm using 1Z high gloss polish on a grey LC pad and it's only correcting very minor swirls, but it is bringing back a lot of the "blackness" of the paint, which is all he wanted.