Jefff
Your method is almost exactly what I do. I use the same 635 resin for my surface coat, thickened with silica and microbaloons, and I add carbon nano tubes. I see that you are using the medium hardener. I usually use the slow for laminating just so I can take my time and not run out of time. Post cure is almost mandatory with the slow. A couple days in the box at 110F seems to finish it off.
Nice work on the jets