Yes mate that's the reason I asked about weight, I'd read that the Stinger needs generally less not more. I figure an efficient weight for B distance is probably a useful starting point for tuning purposes, and 28-30 laps is motoring along nicely
Do you find the standard ballast user-friendly? I ask because I'm wondering whether one of Tony Fu's small fuselage ballast sets would be useful for trimming main ballast? I'm intending to use his bearings on the servos anyway. Speaking of which would you mind telling what's in yours? I'm not going with RDS, it's more important to me to be serviceable/repairable.
Don't answer if I'm asking too many questions Tom, you know how it is when you're waiting on a new toy.