thank for the info.I have 2.25 inch travle on elev.rudder is a cap 232 which is 1 inch longer on top and 3 inchs longer on bottom.travel is maxed.os 46fx 11x4 prop and macs muffer.hovers at 1/2 throttle.just tried the rudder today.i can go from torkroll to knifeadge no problem.hovers beter.still need to move cg back more.eleavators are ok.walls are cool.will not waterfall yet.havent weighed it yet, but have others to compare with and mine seems to be liter.its an arf.