I have never really had a reason in the past to use the glue and never really thought about it. I have just read here where people use it and have read where people do not use it because of the smell. I have actually caught fish on jigs that I put on with gas smell all over my hands before. I think scent sometimes has an affect, but it is not the most important thing. I believe if the fish are feeding and the action and color is right, the scent is the last thing they are after. I just know that in the past when I have tried adding crappie nibbles, that I stop catching fish or catch less fish. I think it affects the action of the bait. I believe if I were using tubes and injected the bait, then it might work better. I do have some of the slab sauce and liquid minnow