wider a-arms CAN make you faster. not the bike faster in a sense of velocity, but rather how well it can be controlled in a high speed scenario. ie slippin it out sideways rather than braking and turning. if i had the chance for arms id take them before some performance work anyday. because then you have power you cant use as a rider. and if you have it, but cant use, you have wasted your cash.
and chase narrow you sig, having to adjust the page to read a sentence is shitty. have some courtesy for the other readers.