I have been flying my PA F15 for 5 yrs..it's a wonderful jet. There is absolutely no was one can tell the difference between ailerons or tailerons. SB is not necessary and I never use mine. Lands at a crawl. I just use the elevon function in my radio (12x) and it works great. I also have had 2 PA F16s with tailerons only. It's an easy simple setup. No one in the world world builds lighter, better flying jets than PA!