Just wanted to share my experience so far, I’m episodic and am currently in a cycle and I have successful busted 2 attacks today with gamma core alone. It takes some fiddling to find just the right spot but when you find it you can tell at least in my experience. I know it doesn’t work for everyone but if you can swing the OUTRAGEOUS cost it might be worthwhile. I don’t do triptans anymore because the rebounds were too bad so this is a great option while I’m out of the house and don’t have O2. I hope this becomes more accessible soon.