I think MD said they are there to give people something to jack around with. I have seen rifles go both ways or not change at all floated compared to PP. Most cases floated works better and less likely to have POI shifts from slings or different rests or holds but if not easy enough to add a PP.

"When you disarm the people, you commence to offend them and show that you distrust them either through cowardice or lack of confidence, and both of these opinions generate hatred." Niccolo Machiavelli