well gents, today I called CC, and talked to a tech guy about it. He says the the bigger motor will not be more efficient; but actually it makes no difference. Oddly, he recommended I go with the 2200kv 1515 for what I'm trying to do.
So, in the end, I'm going to go with either the 220kv or 2050kv model, cross my fingers, and hope it works out well. I think it well, and I think we may be splitting hairs here, but who knows? I WILL let everyone know how all this turns out for me, and I promise to make a vid!
