To avoid private messaging MORE people ( you know you are ) in attempts to get second opinions... I have lightweight copper sinks that are going to be set on the board MOSFETS. They come with a thermal adhesive backing. You remove the film, hold in place ten seconds bla bla etc. Should I strip the sink, clean it up and then use Ceramique compound? The performance would be better. I just wonder which will hold them in place more efficiently over time.