I just bought two bottles of the Yum F2 spray attractent (shad & crawfish) a couple of weeks ago to fish a tournament. I can't say it helped me do well, but then I can't say it didn't either. I usualy use the Bang carlic, but I thought I'd try something new. Si the jury is still out on the F2. It's about $9 for an 8oz. bottle. The sprayer seems to spurt a lot out each time, so I'm not sure how long each bottle will last.