I've always wondered what makes roll so much better than other top manufactured brands? Do they increase handling, better stability? Fit and finish? They fit better than other arms and have a better appearance? Do they hold up better under certain forces where other arms are breaking? Superior materials or manufacturing process that shows an increase in performance, track times, tractibility, ease in steering, better geometry, lighter weight? Just need some elaboration as to what makes them better. Where are they different or what really sets them apart from the rest of the pack, trademark, etc...?