Hi i have a jp eagle 9 .21, and i am running the 16 9% oil, and it absolutely SCREAMS, whats the advantage of running 16 over the 25, im sure the 25 makes more power, but dam it if i need it, is it more beneficial to run the 16, will i get longer engine life, more runtime etc, thanks, just curious as alot of people ar doing this on road and i wanted to hear from people who have done this, it was recommended to me to try by a extremely knowledgeable guy that i trust and so far so good, thankyou...

also with my jp eagle 9rs, how much of head shim should i remove after break in, which would be now, if i continue to run 16%