A good roll wins out every day. I've honestly stuck bait down that has been sitting in salt for days...stuff that looks like wrinkled shoe leather. But if you get it in a really tight roll it can still work, however nothing lays down a better sent trail or looks more appealing that a freshy!
If your headed to Renfew, I'd try salt briming up a pack of herring and anchovie and take half and half out with you leave the other half in the fridge for some other trip. If you get the brime right you can leave them in there for weeks no problem.
When you get out there if you can run 3 lines put down one whole hearing one anchovie and one squid (find out what colors are hot in that area). After awhile if there are still no hits on the whole herring try cut plugging some - you can even cut plug behind a flasher same as if you were running anything else.
Go get em wolf