Interesting. About a year ago, I was trolling one side of a small canal, and another boat was trolling the opposite side. We were pretty much inline with each so we started talking. He was throwing a weedless plastic swim bait and he had a hit. I heard him say "oh he short struck it, watch this". He took out some garlic scent and sprayed it on his swim bait. Cast back to the same spot, as he reeled the bait over the same spot the fish had hit on the previous cast, it hit it again. This time though, it was a solid bite and the fish was hooked deep in the mouth.
He claimed it was the garlic scent, I've had fish miss first time, then hookup on a recast. So I guess I'll never know for sure. I do carry scent in my boat now though.