The 4mm YWET is something I’ve tried to get recreated for awhile. It plays great responsive and unresponsive.
If this was considered, I’d suggest a 4mm gap, 64g, remove the quadfist response and replace with a single, wider response.
Thinner gap for unresponsive & responsive. Nothing over 4mm for an unresponsive. As a “yoyo boomer” I dislike these 4.5+mm gaps 
There is also a great 0A thread if anyone here missed it.