Well, this thread is about 1Jumper10's build.
But since you brought it up.
I actually don't know what stepper acceleration performance can be. I've read that steppers can provide low to medium acceleration performance, while servos provide can provide high acceleration performance. I've seen some good servo system CNCs in various literature or youtube running between 0.5G and at the extreme end, 2G linear accelerations. Some of the really high end VMCs I've looked at had about 1G, the 2G was just one extreme example I saw.
So is the 0.2 to 0.25G really servo like performance? I don't really know, and unless someone can show me some quantitative figures (not just "high" or "medium" or "low" because those kinds of comments have no practical value), I won't know until I try it. I'll probably be happy with 0.15G at the end of the day, which I know is within stepper territory, but I am sizing my system to hit 0.25G if they can.
Also, you're mocking me and I don't appreciate it!