I didn't ride for around a month, because of exams and stuff, and I went out riding as soon as I finished. The first decent-sized wall I tried to backwheel, I absolutely breezed up. No idea how. 4 weeks ago, I probably wouldn't have made it, and I did it first time. Having said that, it wasn't a massively high wall (My ups are shit). I'd say a smidge under 3'. However, not bad for me :D