Haven't had a chance to use either. Probably wont have a chance to use 105 til my step daughters in for Thanksgiving. My car wasn't in need of polish and somethig Mike said to me made a lot of sense as far as doing customers cars. Why polish and spend the time to make the car swirl free if the customer isn't going to maintain it. From now on it will be a suggestion only to people instead of me automatically doing it. Saves me time and isn't a waste if they won't treat it correctly. So if I get a chance ill try out that polish. The Wolfgang spray sealant I got is awesome on my wife's dark red car. Smells great also