we have the non adjustable yokes. rake and trail are a bit less than stock, but not ridden it yet to see the difference. new linkage allows the shock to work throuout its full length. the stock linkage cuases the shock to lock up on high speed bumps. the exact science of it was explained to me, but i was not paying enough attention so i cannot explain the full workings to you...sorry
swingarm is a bit longer, but can be adjusted. we have initially set the wheel base as stock, but can go longer/shorter as required. Will fine tune it as we go. as always, its a tradeoff between straight line stability and turning ability.
Arm pum not really a problem, asuming the rider has been training and the bike is pretty stable. big forces under braking though, sometimes from over 180 mph