Throttlemeister will out last the thumb-lock type as well. I used a thumb-lock on my Yamaha XS1100 some years ago and by the time I sold it I had used all the adjustment out of it (friction ring worn down). The Throttlemeister doesn't have a wear point like that so should last many years, trouble free (I've been using one for 6 years no problem, no adjustment). The thumb-lock is easier to use, it takes a little time to learn the technique to roll the Throttlemeister on without affecting speed vice just pushing down on a button. But once you master it, it's no problem. The only down side to Throttlemeister is the price, but it is quality materials and a quality look, so I use it.