Well it seemed as though bad karma was all over me this morning..The prop broke and the muffler came off at my first take off attempt...and it was all over the runway because there is no rudder and only a tail skid for landing....the only other prop I had for the Magnum XL .15 was a 7 x 6!..I almost packed up and left , ...so I get the prop on richen it up for the lack of muffler, fire it up , check the controls and land launched it....its pretty FAST...so I climb out and its not trimmed at all, wants to climb and turn left, so after a few laps I can actually look down at my radio and trim it out...after that it was pretty much full speed waaay up there a good 3 mistakes high...until it ran out of fuel then she calmed right down and came in pretty as you please....so I need my muffler fixed so I can throttle it down to floating speed, without the muffler it would die at anything under 1/2 throttle.....So after 1 flight I let karma win and packed it up and came home....until tomorrow when its 70 out again...Rog