I made this change about two years ago and have been very pleased with it. I lose about 500 RPM at 70+MPH. It is just more comfortable in cruise - for the engine and for me. In my case, it helped oil consumption. Anything north of 5,000 RPM and mine starts using far more oil than at slower speeds. At say 60, it will almost never use any. I have 48,000 miles, but the bike has been that way almost from new. It's either rings or valve guides/seals but have controlled it well enough that I do not want to open up an otherwise really good engine.