Hog dog that works cattle too

Yeah, he could be fine, depending on wether he's smart or not. If he's a good smart young cur dog, all your going to do is make him a better dog overall. A dog that takes to cow work will have better handle, be more confident and be more productive in total hog numbers once they learn that baying an animal is not a one and done scenario.

I've got young dogs who are hard casting go getters and when they've screwed up and bated cattle on a hog hunt, it's as easy as telling them NO, GET OUT!! And they simply roll off to look for hogs.

Tldr; if the dog is smart, you'll be fine, if it's a hard headed dummy, you'll be frustrated.