I'm not great in high water, myself, but as far as snaggy water goes, keep the bait close to the boat. The more line you let out, the better your odds of getting hung up are. The river I fish most of the time is loaded with snags, but I've learned keeping the rig within 10ish yards of the boat helps mitigate a lot of hangups, and the fish don't care if the bait is near the boat.
