Sweet flying airplane.
I have never had any nose-over problem with the stock set up on a not so great grass field.

An OS61FX is plenty for most fliers( Brisson pitts muffler) with an APC 13x6 prop 10% nitro.

Even with this fairly light powerplant setup mine needed 6 oz in tail to balance. I suspect many of these flying are nose heavy.

My favorite ARF.

Scott