Well rene. To some people it is. I know it may not be to you. It is an expensive option to. I can't say that I regret getting mine. It has been a good esc. I would like to test some of the others out. See how well they do. I have heard but never tested.

I'll be running a 9L on 12-16 cells. I guess I'll buy the 9920, but I may actually buy the Quark! Does anyone know about the customer service from Quark?

I would not run 16 cells on a 9L. 9xl yes.

Since Quark is around the message boards, I would assume that their customer support is good. Soon I should get to personally meet Frank that works for Quark.

Keep me updated on that, Metal.