2K paint

[das 2000M]

Has anyone any experiance of 2K acrylic urethane paint, I will soon be ready to paint my M series TVR, I am intending stripping the original cellulose back to the gell coat, so as to have a sound base to start again.Is it best to use a self etching primer? or is it not neccesary when using a 2K primer/filler.
Any info would be much appreciated.
DAS.