Switching to these made the change of direction a bit quicker (or it did in my mind at least), they looked better and I guess if you're so inclined you get get coloured ones, I just got plain black.
http://www.ebay.co.uk/itm/350301926423? ... 1438.l2649
Given the enormous front-end weight with the 650 lump I didn't expect any issue reducing bar weight slightly.