ORIGINAL: MinnFlyer
And just for future reference, there's nothing wrong with "Dremeling out" a Spinner.
They are designed to fit the smallest prop feasible for that spinner size, so most of us need to open them up a bit.
Exactly right. And APC is one of the few manufacturers that will cut your spinner for you. I think it costs about $20, but it's worth it just to avoid the hassle and trying to make the cut-outs symmetrical.