MS wiped on before finish not only helps clean the surface but also shows how it will look with a clear topcoat. It also highlights any glue spots that haven't been completly removed(that doesn't happen to any of us). None of the finishers or woodworkers I know use tack cloths any longer. They are just dirt and dust magnets that we save in order to spread on a new project. I use ms,alcohol,naptha or what ever is handy,but never acetone. If you really want to glue oily wood, sand with a higher grit just before gluing,more effective than using acetone.
Regards
Jerry