Joe you must live close to me. I am a 7th District boy too. Got many a sting in my time, Shaking those jellyfish out of a haul seine net is a thrill you wont forget. I find Meat tenderiser works pretty good.
I'm in North Dakota now. I remember clearing them out of haul seines, Phike (sp?) Nets, Gill Nets, and Crabpots.
Miserable critters, especially after someone experimented with some chemicals in Chaptico Bay and wiped out the millfoil which kept them offshore.
Once that vegetation was gone, there was nothing to keep them off the beach (that is a smell I will never forget).