the axle might be a bit to thin? there not good hubs though your best asking the boys at tarty i'm prety sure you could butcher your chain tugs to fit the dropouts though.
why wouldn't it though? 'cause you'd be weakening it surely when yuo dent a fram the metal is stretched thiner to make the extra surface area from the dent
get the "old" style echo 4 bolt booster (all the new ones, echo team, ZOO! czar etc are a bit to wide fer t-birds or they were for mine ) there plenty stiff. set you back 20quids
shhh also another point for square taper, prety much everybike shop will have square taper bbs very few bikeshops i've been into have isis ones plus your prety unlikely to be carrying £50 around with you if you kill your isis bb, conpared to scrounging a tenner for a replacement
6ft1? w.b don't mean naff all though (it only limits/improves your ability to do moves, i.e short= easier to spin + long better for "power" moves) it's more about cockpit room+stem
lolol, i agree with the manuals + such but thats not really trials is it. also i've seen people maual high bb no problem what about the whole extra clearance you get with bb rise though?
i don't get what you don't like about high bb frames. (i've not really riden a stock properly, just a few back+kick hops) but i always found hifis, czars, gus + vincos to be prety nice.