Using 36:1 is probably more oil than a 60cc needs but unless it's starts fouling out the plug it's just going to make a little more mess on the bottom of the plane. My gassers range from 20cc to 60cc and I don't want a different fuel can for each one. So I run 32:1, about the same mix you do. The whole "what oil is best" topic has been beat to death in these forums. I prefer to use Stihl Ultra in the gray bottle for two reasons. 1) it is easy to find. 2) It's what DA recommends. I also do my best to find 100% gas and not E10.

David