I built Flynn (well Claude did) and that's awesome you tested MoofTCP with it.
Coincidentally a couple of weeks ago I got annoyed my 512Ke couldn't go online and had Claude build talkip[1] which was fun and works surprisingly well.
BTW, the story behind "moof" and how it relates to old Macs: https://en.wikipedia.org/wiki/Dogcow
So disappointing to see no direct numeric comparisons with the original.
As someone that also has a fondness for the old Macs, I absolutely love seeing projects like this. I love seeing an active, vibrant classic Mac community and new software for ancient machines. This is great!