well that went well! Thinned it down a little more this time, the official ratios by volume are 4 parts paint, 1 part activator, 1 part thinners. Have upped the thinners to about 1.5 and a lot less orange peel. I'm very happy I went the extra mile with wet sanding and stopper as the finish is noticeably better.
You can still see the orange peel but its much reduced. Another coat or maybe 2 depending on how I go through the litre I have mixed. and that will be the bonnet done. It will be put to one side and will only be finish sanded once its back in place.
TTFN
Mac