Handy Speed Question

This may be a silly question, but the 500-600 U/s that people reference for speeds theHandy works, is the implication that it will do the full stroke at that speed? I may be doing my math wrong and was shocked at my number (lower than expected) and wanted to see if I was missing something.

The Handy’s max speed is 400mm/s and has a stroke length of 110mm according to theHandy website. So at its fastest, it should be able to go 0-100 in 0.275 seconds which translates to ~364 U/s. Is that correct?