I have a set of pro fiber track fairings and went slowly with a dremel to cut one headlight out. This way if I come back from a track weekend I don't have to rush back to street fairings right away. Just go slowly and take your time, I started with a cut in the middle of where headlamp is. Then put fairings back in place, made some trace marks, went back at it with dremel. Back and forth until the headlight was fully cleared. You will still need to tape up for track purposes, but it's nice to have.
I switch the tail back to Oem fairings right away because it easy and that way you get taillight/rear signals. I also did not bother with front signals, so if track fairings r on and I hit turn signal switch, a lamp error will stay on the dash.