Can't vote because I haven't ridden the Ninja. Got a A1 though, this is how I feel about it: Awful for gaps at first, when you get used to it, it's as good as any other frameGood-ish for taps, which means you will have no problems with tapping but will no doubt tap higher on a low bb frameVery easy to go to front wheel, if it's a pedal-up or gap to frontNot too good for wheelswaps, at least I find it much more difficult than on a PureDead easy hooks!!Dead easy sidehopsGreat rear wheel controlUseless for comps because there is so much ground clearance that you can't land on the rockringAll the obstacles seem lower (didn't believe it after reading something similar on tartybikes but now I do!)