Thanks you all for the feedback.

- I want to stay with central diff because I think is much better for racing, and that is I want the LSP for.

- Didn't know the RCM Revo mount will work so good, so I ordered the LSP mount. :-(

-16T pinion is not so big. Now I use 15T with a Lehner 1950 7T and 5S dewalts and was thinking to lower thr ratio.

So I will email Mike for an explanation.