I have flown all three H9 33% aerobats and recommend any of them for your DA-100 etc. I have the Extra and it is my favorite of the three probably because I set it up the way I want, but the Suk and Cap were set up well and I enjoyed flying them too. The Cap is ridiculously easy to hover, the Sukhoi has huge elevators to allow wild blenders, walls, etc, and the Extra is my favorite for precision work. All three do great Harriers with minimal - no wing rock and have large surfaces for good control at slow speeds. The Extra required no mixing for a straight knife edge, while the Cap and Sukhoi required some up elevator for straight knife edge. My pick of the three is the Extra, though the Cap and Sukhoi appear to be constructed better.