I have UpperHands Cherry Bomb scent that I am doing some trial stuff with. Right now its being used with panfish ice plastics. Originally I split an order, with the shop knowing that 50% of the packages had scent cooked in and the other 50% were just straight, un-scented plastics. We set up two series of hooks and offered the baits as scented or un-scented. Customer come-backs for the baits were watched carefully to see if return buyers had a preference. Actually the sales were as close to identical as one could get. A re-order from the shop got split three ways: 1/3 of the order had the cooked in scent. 1/3 had the scent as an add-in to the bag and the other 1/3 was un-scented. The three offerings were done up in identical colors and in identical baits. Thus far the un-scented and bag-scented baits are neck in neck while the cooked in is lagging. We can't really say this is a scientific study but in speaking with customers as they buy these baits the shop has come to learn that people very much prefer the scent added rather than having it cooked in. Most all asked why say that the cooked scent doesn't do as well in the catching department as the added scent. In both trials though, the un-scented baits sell equally to the better seller in the scented baits.
I chose to do this little comparison using the panfish sized ice plastics because nothing on the face of this planet will study a bait longer or more thoroughly than a sunfish in the winter. If a scent was going to be a negative factor, this would be the arena to use it in. Thus far the Cherry Bomb has done fine but the clear preference in the panfish anglers in this area is for the scent to go into the bag, not in the plastic.
I make an Anise scent that I have been adding in controlled amount to bait orders a few walleye anglers get from me. I am also adding the Cherry Bomb to some of their baits as well. Scent-free plain plastic is also being delivered. None of the scent is being cooked into the walleye baits in this trial. I ask each customer at the time of the order if they are willing to trial this little scent project and so far every order has seen the three-way split. I hope to begin seeing some reflection on this now that the walleye anglers are getting out in open water more.