Time after time, fishing with my partner, one of us have fished the variety of latest scented soft plastics like Gulp worm (water based scent) and the other fished the same basic color pattern worm using a cooked in oil based scent, like anise, garlic or crayfish and catch same amount of fish, same size, same structure, same-same. The basic facts are scents work. Yes, they mask human odor and yes, many are appealing to fish. Many basic earth scents will do a great job. Fish do like the taste of heavy salt impregnated baits and it does make a difference, not just fall rate either. Tests show that heavy salt also helps to hide human odors. Basically any of the scents designed around earth or prey species such as shad, crayfish, etc. are good as long as the scent is natural and will mask human odors. I make many of my soft plastics myself and all have some type of added scent in the plastic. They all work much better than non scented. Variety is also good when fishing heavy pressured areas. Think about it, long before Berkley was anise scent. Berkley power worms made the statement “scent works”, now many scents and scented products have hit the market and they have proven to all work about same. Careful with the latest mouse traps, Berkley spent a bundle to create and market Gulp, the soft bait that you can only fish once and for a short period of time then go buy more, only to find out that fisherman expect more consideration, so to salvage their investment, they now give you a bucket of juice to float’em in. “Gitcha some of that in the bottom of your boat”. They make it sound good but that’s SALES. Use your common “sense about scents”. 
Then again, I have no doubts the guys at Berkley are top notch. 
