I was thinking about getting one of those 1/5 throttle inserts for my 05 zx6r. I like the idea of having quicker throttle response and not having to reposition my hand when I want to really open her up. I was reading about them and people are talking about getting R1 throttle tubes for their gixxer 600s or getting a R6 tube for thier SV650. Does anyone know why they have to do this or what its all about? Does anybody know what throttle tube I might need for my zx6r?