I'm not sure they would work so well on a trials bike... The resolution of a notched snail cam is usually around 0.3mm and even going from one click to the next can make a difference between a totally loose and too tight chain. I guess with BMX it doesn't matter as much, but with trials you would need such a huge range of different sizes.
The design is sensible, gussets in all the right places, good quality, plenty of weld areas, not much CNC so the tubes are quite thick... A local rider has one and he really likes it!
We've not built a Because yet but they seem pretty good value for money. Quality is decent, geometry good, weight and design are both sensible. The Blade is also a good frame, again with sensible design and very light for the cash!
Not sure if you got my email... Hey Matt, Looks like the BB has floated through the frame a good 5-6mm which is what's caused that... You should be able to get that cup off with a Park HCW-5: http://images.google.co.uk/images?hl=en&am...G=Search+images - most LBS will have one Cheers Adam