I have about 150 jumps on my Diablo 135 loaded at 1.33. First off... the Stiletto feels much less responsive in flight compared to the Diablo. On the other hand, the Stiletto 135 will surf about a third farther and the front riser feels about 15% lighter.
As far as the flight characteristics of the Diablo go, the turns are the fasted that I've ever experienced. It will dive straight at the ground and slump you in the saddle with G's. Where you might be used to using about 8 inches to get a minor correction on landing under a Stiletto, you only use 3 inches on a Diablo. 8 inches of control input on the Diablo will give you a speedy turn. 12 inches will get you a slicing diving turn. On my canopy, 18 inches of input lets you look over the top of the canopy and gives you the fastest rate turn. Be aware that the over-turning tendency of the Diablo is somewhat greater than the Stiletto, so practice the turns up high. The canopy doesn't 'breath' like some other canopies on turbulent days, and feels very solid. The openings are on heading 9 out of 10 times. While it is opening though, it definitely helps to think about distributing the weight equally between the two legs as shifting to either side can produce a speedy after opening turn. In my experience, both slow and high-speed openings are on heading and predictable, and never hard. Landings are a breeze. At 1.33psf you can fly straight in on a hot no wind day and bring it to a very slow speed soft landing every time. On cool days, or days with 5mph wind, you can bring it to a dead stop. On long spots, I leave my brakes stowed and float back with the best of them. In short, you'll love this canopy (after a few jumps) if you like fast and exciting flying. If you're into long swoops though, you probably won't be satisfied.
