A veteran chemist with an extensive background in aquatic biology, McCain hasn't bought the fish scent concept since day one. That's because he thinks it is biologically impossible for fish to detect the same odors as the human nose. They think that because they can smell an odor that a fish or aquatic organism can detect the same odor. According to McCain, this is not true. He says fish can't detect the same gaseous odors that stimulate the human nose.
Fishermen relate very well to smell.
But unfortunately, the fish don't. There are probably going to be a number of anglers and lure makers out there who will vehemently disagree with McCain's testimony. There are thousands of anglers around who fish with factory-scented baits religously. Others who would feel naked if they couldn't squirt or dip their lures in an oily potion every few casts. Indeed, confidence is a big part of being successful at any sport.