Quoted from gweempose:If you're really worried about messing up, you can always do what I did and just buy a set of the premium/LE plastics. It's obviously not the most cost effective route, but you at least know your notches will be perfect.
I wish they would sell the individual plastics! It seems like overkill to pay the $129 for the whole set, when it only takes the 2 pieces to mount the spinners on the pro without having to cut the original plastics...