Ya know, I have to honestly say I don't know much about the AMSOIL company in and of itself. Someone I really respect recommended it to me so I am going to try it and see how the bike responds. I have used Mobil 1 for years and have never had any issues. I think that AMSOIL, Mobil1, RP, are all probably good oils and that there really isn't enough of a difference between the oils to get all defensive and worked up about it. I change oil every 3k miles so I don't get into these long OCI that some people do. Because of that, (maybe nieve) but I don't think any of these oils are going to "Fail" me in those 3k miles. Just my two cents.
My point was really that I am willing to spend money to protect my investment and am just the type of person that tries to use the best products for my toys.