The cutout is perfect and foam is thin, just enough to do what it needs to do. Works on the Brutalist and Savage products too

Everything fits the board perfectly, and functions as expected

The sheet fit right onto the board. Since it's so thin, I was even able to slide it underneath the stabilizers without having to remove them.

It affected the sound in a pleasant way and was very easy to install. If you have the Bakeneko65 from CannonKeys then this is definitely worth a try.