Ok so I finally gave in and built an excell spreadsheet myself,, lol, guess I shoulda kept my mouth shut while I was ahead,, Steve, ya got me this time,, I came up with the same,, 6.5 ounces,, leading to a final mix that is a total of 134.6 ounces, 9.51 % nitro, and 22% oil,, sigh,,
ah well, its always been what I do, just add and ounce and a quarter per percent, in a gallon, always worked for me, besides then I tweak to taste. when I was Running my FP 40's, I would generally end up adding just a couple more ounces on top of that or they would start to go over at the end of the run. especially here when its 90 degrees at 2700 foot altitude!