Use FINE steel wool, and saturate the SW with the solvent. I've used
this to CAREFULLY remove paint splops, small areas of bad finish, etc.,
etc. The solvent is doing most of the work. The SW is just picking up
the softened finish.
BTW, I like tung oil better than BLO for finishing. Easy to put on thin
coats, and dries more quickly. Less problems, for me at least, with