Well, let me put it this way.
Orgasm makes the body more sensitive. The highest setting together would be giving you one after the other. And getting smacked by a crop over and over while your body is practically tingling where a gentle scratch would be painfully erotic would definitely put one on edge, at least.
And second point, even without the whipping, think of how much energy you would go through just to stay conscious a hour, two hours, 8 hours after it's turned to full. Anyone would be able to do whatever, and you wouldn't be able to move, scream, or even flinch. You might be begging to be taken off of it after a few hours of orgasm after orgasm, just because the pleasure and pain from it mix too much to tell them apart.