daRock are you saying an end plate will not aid the performance. I have added to the cord of elevators 1 1/2" from the V and tapered it to the tipand it now has balance tabs, did the same to veritcle stab. and rudder. Thrust line is raised 1" for sake of 20cc engine and weight needed up front, I know I don't need all the power. Wings have also been raised 3/4" and are now slip on plus it's a tail drager. Strip ailerons are now built up 15" X 2 1/2" cord and flaps 15" X 2 1/4 cord plus wings are sheeted. Thats the bulk of the changes I made.

Much that I have learned about this plane is about lack of authority in the stableizers and I'm hoping to improve on that, wing tips are the only other matter and I dont like the ones suggested for the plane. I would like some input about the changes I made, are they good, enough and are they going to work for me.

You can see the build here www.rcuniverse.com/forum/m_11326847/tm.htm

Here is a pict of what I have so far. Won't upload this time of night, please check out my build I'm really intrested in a professional opinion, thanks Leroy

I tried again, it worked. Buy the way, don't the tabs also add to the area of rudder and elevators ?