Austyn has a very good switch backside flip, to say the least. With his ability to pop (just look at the trick done over the Maloof High Ollie bar with a casual little light footed hop after landing) and his ability to skate super fast so nonchalantly (like all throughout his Quik part but in particular at 4:17 when he speedily switch backside flips over a huge street hip while basically going downhill the whole time), Austyn comes out with a trick that looks way too comfortable for the level of difficulty that he executes it at. Some notable switch backside flips that I've seen from Austyn: over a steep hip at 0:32 when a couple Habitat guys traveled with Austyn in OZ, down a clean set of skatepark stairs at 1:40 in his Street League Selection extended edit, and at 0:33 over a fire hydrant in his latest Real Street part.
But with a style like Austyn's, I have to place further emphasis on a few of the sweetest switch backside flips I've seen from him. Austyn's part in Habitat's Origin, one of my favorite video parts of all time for sure, showcases his great use of speed and flick at 4:30 when he switch backside flips across a super long dirt patch, over a wall, and then down a small gap after all that. You can tell visually by the quickness that he moves away from the camera just how fast he was going and how long that gap must be. As referenced yesterday with Blake Carpenter, Austyn also participated in a very entertaining and impressive Battle Royale at the Berrics, where at 1:15 Austyn lands a beauty of a switch backside flip. The crazy thing about this is that not only was it down the Berrics' 7 stair, but he landed about 6 feet out past the last stair just for the heck of it! And to close it all off, I'd like to point to the extremely aesthetically pleasing video part above: Austyn Unlimited. The whole part is great, but it also shows Austyn's varied use of the switch backside flip. In a line starting at 3:38, Austyn's pulling out quite a few enjoyable tricks all while cruising down a nice hill. Mid-line he decides to switch backside flip (after a switch ollie and switch powerslide too) and still have enough cruising control to swerve behind a parked car and ollie back up the curb for his next trick. At 4:46 he shows the trick with a more technical control by doing it into a manual with a front 180 out on a nicely structured pad. To penultimately end his part at 5:35, Austyn drops one of my most memorable switch backside flips: in a crusty looking neighborhood, over a sketchy curving staircase's handrail, defining style with his flick and catch, and landing downhill once again so that he can roll away with that effortless posture.
UPDATE: I always remembered this particular switch backside flip over a couch from Austyn, just not where to find it. It is a thing of beauty.