Spot jumpers wouldn't be so bad if they knew how to fish in a crowd.
I've fished shoulder to shoulder with guys who knew what they were doing with minimal tangles. Flap can tell ya about the nights with 20+ guys in a line on the Flats
But let one hammerhead join the mix and it's headaches for everyone.
What I do with those guys is, when they move in, I give 'em a good natured "hey, normally, before I let anyone get this close they have to buy me dinner first"
Sometimes they take the hint and move a few steps away. If they don't, I'll watch them for a few casts. If they seem to know their schtuff, I'll work around them. If not, on the Canal there's plenty of spots and I don't mind walking away from easy access
Threaded Mode