I’ve had 2 Corbin’s and a Russell on my K75RT. Found the Corbin to be almost as uncomfortable as stock, just a 100 mile longer to intolerable. A couple of my riding buddies from the national rallies have sargets and swear by them. My experience with a Sargent is about 20 miles so I can’t judge long distance. I will say it fit me better than the Corbin and felt much more comfortable.