I wasn't sure if the tips ware creating some kind of disturbance in the airflow, or some other problem. But after reading your reply, I did a quick check of the planes that I've heard off people cutting the tips off...sure enough! They all had ailerons that ended short of the end of the wing (because of the tips). If thats the case, I still think I'm going to add wing tips (I think they make it look allot better). I'll just make sure to make the ailerons extend all the way out, like you said!

Did you make all your moments, and surface areas roughly the same as the Laser 3D, or did you change anything to improve the way it flys? The reason I ask is because I was thinking of using the Laser 3D as a starting point, too, and modify some things to make it look a little better (to me anyway...I don't really care to much for the way it looks).

Thanks again for the help!

Mark