dont run more then 10% nitro in the vmax engines,
also krammer i was not saying that you were bashing vmar,,and no i dont have the arrow tiger yet, i was thinking of getting one,
it does sound like your plane may be nose heavy,,also have you tried a 11x6 prop yet,,, i have the vmar aero subaru and it has the .46 vmax with a 11x6 and it kicks ass,, no problems at all with it,,
also you said you got 7 oz of wgt in the nose,, man thats alot for that plane???