We made some modifications to the Side Force Generators (SFG's) on the 3D Hobby Shop Extra 300 SHP and decided to give them a try. They are more rounded and poke out in front of the leading edge of the wing. They really make a difference!
The are very easy to make. Some 1/16 balsa, some self adhesive covering bought from the LHS, and then the stock SFG's just go right over them! Very simple and make a significant difference. Here's the video from today! Enjoy!