I want to add highway peg extensions and could use your help in finding a nice set. I'd like to buy something that bolts onto the heavy mounting clamps that came with my Ultra but most of what I've seen online come with a thinner clamp like Harley 50829-7A, 50830-7A and 50832-7A. Kuryakyn recommends the 4556 or 4557 extensions which are two and four inch options. Does anyone use this style or know of a different set that comes close to matching Harley's billet style brake and shifter levers ?