I have been running 5/10/2 in my MBX-6.

It works great. I don't see a need to go heavier in the center.

I started out with 30k in the center but went back to 10k.

I only run mine on a track, either practicing or racing.

I run around my backyard track for testing. That's about it. :smile:

Gosh darn it I have 30k in my buggy - thats why i can't turn for toffee