Vintage Double Hose

I will be in Coz in March with a group from the local shop. Has anyone dove with "Dive Palancar" in Cozumel? (The one at Sabor.) Did they give you any grief for your double hose gear? Any special requirements?

Thanks!

I can't speak specifically about them but so far I have had no problems with non-US dive ops while diving with a DH reg. While on boats I usually have a bladder and an octo (Phoenix on a Zealge ET BC) so I don't look too out of the norm.