this is just my personal opinion, and i am no pro. but personally i think i would rather have an arm break than bend. yes i know that does sound a little funny because it would put you out of contention, but if the arm bends, i would just think it would put a lot more components under stress that wouldnt normally be there possibly causing many other parts to break prematurely. that is just my look at it. i think the grey arms a good in the rear, but i am gonna stick with the blacks up front