I had a little oil dye layig around so I tried to test a spot on a fender it turned purpleish and when it dried to the touch some spots looked dull and others looked more wet plastic like what did I do wrong when you apply the dye do you smother the leather or put just enough to bairley cover it? Do you need to wipe off excess before it dries? i've never done buffingf how do you go aobut that do you need any special cloths or tools to buff?