I would like to replace my stock bars with some ProTapers and was wondering if there is any reason to go with a new upper triple clamp as opposed to the large diameter bar adapters sold by Yamaha ? Any comments on which bend is best for woods riding ? I am 6'3" and would like the bar to be slightly taller than stock. Any recommendations on aluminum hand guards that will work with the 1-1/2" bars ? Do most people replace the stock throttle tube with an aluminum tube ?