I might get one. After my HV Hyper ST is done, It looks like I'm getting bl-is-future's Hyper 7. I found a great deal on a 8xl, and will run on 4s. Your 120a ESC looks like it'll work well for my needs.
My 1/10 ESCs will work fine with the Novak HV motors. I will try the 200A with 4S lipos to see how it does and I'll post something here.