Yes, very good guys! Have there clutching in my viper and did some fine tuning with phone calls as well as in person and was a pleasure. Also talked some vintage vmax4 stuff that was very helpful also.. we went on and on , loved there passion for the sport and service.... its what is missing in most businesses!Just wanted to share that I met the guys from Thunder Products at the Novi show this year. We talked clutching and my set up that I was still trying to dial in. They spent time with me and even after the show spent the time to give me a recommendation although I have never bought anything from them. Just returned from a quick UP trip and my clutching was spot on! Can't say enough about this level of service. Much appreciated how they support the members on TY. They'll be my first call when I buy my next new sled.