First of all I want to say this site is absolutly awsome. Taffy has helped me on jetting and Lineaweaver was great to work with on his X2 cam. Actually can"t wait to ride the bike this weekend, but that will be a comment for another time. What I am interested in is all the talk about Delo 400. Looked up the web site and see a multi-grade and a synthetic, which one does a guy use. Also have recently switched to Delo 400 and bought the multi-grade and noticed that the gear box doesn"t feel like the oil is cusioning or that it feels thinner has anyone else experienced this.