Thanks Guys, Ed, The grind I have come to which works best is basically a blended double bevel, taken very thin at the edge. It ends up being a very robust grind with great release, especially on a thicker knife like yours. The grind appears convex to the eye. If you look at the heel you will see there is an apex to the convex. This is often described as a wave, I find this to give the best release. And as long as the time is taken to get it uber thin at the edge it cuts well too.
I have my processes to make sure a knife cuts food well out of the box. I tend to grind the knife as close as I can get it on belts, test it on food, then do the final thinning by hand on Diamond plates, retest as necessary, then hand finish.
I do it this way as many times I have hand finished a knife, tested it, not been as happy as I could be....so needed to grind a bit more and hand finish all over again:laugh:
Marc, thats fantastic mate, Its a great feeling to have some worker bee knives out there, let me know how it works out in the long term. That Patina is coming already.