Good day.. I'm ryding a 2005 HD Road King Custom (5-speed) and looking to change over to a 6 speed. Has anyone made this change to a SE 6 speed or baker speed? Or does anyone have an opinion? I'm looking for longevity and a bit more top end (less vibration). $$ is not a factor here... thanks for any help. **I gotta say I'm leaning towards the Harley product**