caliberdave, I do hv nitro on hand right now, so i guess i'll use a 10% mix since its very expensive here.Secondly, there's a problem with the knife edge. It falls towards the canopy, n quite a bit. could it be the incidence? if yes, should i lower the angle of attack of the wing by putting a couple of washers at the back of it?. what else could be the problem? secondly, for power do i need a tuned pipe? thirdly, referring to ur prop suggestion, will the vertical be good enough with a 10x6 or 10x7? i will give it a shot though. please advise on what to do?

One more thing, I bought a WM midget mustang y'day. any comments? whats its aerobatic capability like?