Hmmm.... I don't see why you couldn't do what we down here in the columbia for salmon from shore. We tow our lines out with a kayak and a breakaway dropper weight which is just a rock with a 8-10lb mono piece of line with a knot tied into it. You should be able to do the same with a sinker slider tied to a rock and tow it out to your hearts desire. Guys out here drag there lines out hundreds of feet from sure. Definitely well beyond casting range and keeping your bait in perfect shape. When a fish hits it rings your bell and either breaks the rock lose or you break it off when you set the hook (run up the beach with your rod) allowing ypu to fish the fish weight free and less likely to snag. Same is done with sturgeon down here.