Here's another trick to keep your boat straight, hang a couple buckets out the stern rather than using stern anchors. They don't tangle with the fish and work just as well when the current is running, if the current is not running hard enough you should be trolling rather than plunking anyway if you want to maximize catch per effort.

Me, I like a heavy anchor that holds me right there, right now, none of this guessing where to set the anchor to wind up with the right amount of scope in the right place in line. My rig has an open top bow pully with a jam cleat on it, so I can throw the anchor line over the side with my buoy as soon as I get a fish on if I want to - which I recommend doing if you have lots of neighbors, gets your fish away from their gear and lets them keep fishing - wish more people would do that for me