Our "standard" fuel right now is Klotz-100 20% with 10% nitor. That has progressed from the 80-20 plain castor mix I used last year and had a lot of issues with on a 75AX. We usually home-brew our fuel (one of the more experienced modellers does it for us less experienced or less experimented people). I have about 1 gallon sitting in a sealed container from Feb-March when flying had stopped due to non-aero reasons

kochj, havent paid for it yet. Its on "approval basis" due to "good relations" with my LHS (Guess that means I bought a lot of stuff recently)

Ameyam