I am in the process of finishing a repair to my truck and ran out of a small can of Bondo brand filler that I had left over from a different repair from earlier this year. I am reading a bunch of good reviews pertaining to Evercoat Rage and Evercoat Gold. Can I use the two together? Can I cover the Bondo with etch primer and then use the Evercoat? Should I wire wheel the Bondo off and start fresh? (Ugh, I really don't want to hear that) Thanks in advance guys and gals.