OzExorcist
Broomcorn's uncle
Bronze Level
I always play without hud because i don't like it, but what i hear from pros its pretty much a must these days on the medium/ high stakes if you are multi tabling..
Certainly in the medium stakes it's the norm for multitablers. I've read a few pieces from high stakes / nosebleed regs (definitely Dwan, pretty sure Galfond and others too) saying that they don't really use HUDs at those stakes because there's a limited player pool, they generally know their opponent's games pretty well and it's really more about out-levelling their opponents as opposed to just playing to their stats on a HUD.
I know I've heard interviews where Daniel Negreanu says he does use one but I think particularly among the old-school live pros that he'd be an odd one out. AFAIK Ivey has never used one, pretty sure Dwan claims he never has either and I'd be very surprised if Patrik / Gus / Lindgren / Greenstein / etc use them either. Again though, nosebleeds is a very different beast to the lower stakes.