ill giv my sister a bike, build her 60 walls.. starting from 1" and going upto 60"... not going to happen isit if your talking about that 59" tap danny butler did thats about as vertical as my bed then id be more than happy to do it street riders cant tap 59" in muddy runups upside down etc but neither can anyone else your forgetting natural is all un even but thats not always a bad thing it makes tapping things a lot easier you can side hop better because you grip more theres a good and a bad side to everything. street is just all the big flashy moves you use in trials to get over natural obsticales taken to the highest possible level, natural is those moves but smaller and in combinations if you like Lycra, frustration and competitiveness get on natural if you enjoy spending all your money to smash it up with all your mates having a laugh then get on street