TC - Max Rate Of Yaw Permitted - is - what?
I am not sure meself but 15 degrees per second seems to ring a bell. Anyway whatever the limit is, if you do not exceed it and you operate within all other parameters, then FS is not an issue. There are loads of ex-floppy drivers out there with thousands of hours on the machine and very few 'known' instances of this potential effect.
Best Wishes