RE: 4-stroke for Somethin' Extra
Bullet,
My close up of the battery installation doesn't show too much - I cut the covering, glued in some popsicle sticks, stuck the battery in and held it in place with foam. I haven't re-covered yet because I keep moving the battery back further (it is just about as far as I can go now). I did this same thing with my first SE and it would Knife Edge all day without increasing the rudder size like some have done. This plane rocks! I'll post some pictures of the mods I made. The TNT landing gear gives me 3.25" clearance with the stock wheels.