Print from TPU. 15% gyroid infill worked well, feels slightly softer than original foot. Otherwise I just used the Generic TPU and 0.16mm Optimal profile. If you get stringing with TPU it's probably best to print sequentially instead of all at once.
To install simply pull off original foot, it's just stuck in the hole, and pop this in. Then adjust the high foot down until your printer doesn't wobble. Easy peasy
The 11.5mm thin feet work nicely, but I made an 18mm thick foot that is maybe probably better. The thicker foot has more thread engagement and more clearance for your fingers, maybe has more “vibration dampening” because if has more rubber. Probably just use the thick one unless you have less than 10g of TPU like I did when I tested this LOL