Yeah. Just doing minor sways is fine. I did a bunch of them to test.
The tricky stuff is buffing very fast slip counters, off of apunch of your own. You have to be more careful with the timing. And bufifng major ducks feels a bit tricky, too.
This will hardly be considered a problem if only one player things the input is bad. If there were a crowd saying the input sucks, then yeah, I'd worry more about making a video of consecutive minor slips. They're easy.
Note that I'm not saying everything is perfect. Your questioning is still valuable, as perhaps there is room for improvement in comboing the inputs of punch - slip - punch.