Wow 10 25 1 sounds like an outdoor setup on a loose track or a truggy, but as that guy told you that works best for him. I think Slims setup (Sup Nugga) is more inline for tight turns and high traction. I personally have used 5-10-3, 5-7-3, and now 3-5-1 in my mayhem and cant tell a damn bit of differance. What does this tell me? Drive drive drive till I can tell the diffrence. Lighter in the rear does seem to help it turn