Well, I sorted out all of the issues that I had from day one. The burrs are clean as are the grind chambers. A new clump crusher fitted. Today I decided to throw some beans in and try it. To all of us who have bought single dosing grinders, the idea of a hopper fed system is a culture shock. On removing the top burrs (I did not weigh it) I would imagine that there was 1 to 2 gms of grind that will exchange. Is that a problem? Not to me. That is how things used to be and 10 years ago no one complained about it. After grinding a couple of shots worth I started to adjust grind setting and timer setting. Eventually I got an output of nearly 17 gms and the timer set to 3.45 seconds.
Tomorrow I will continue tweaking and might make a short video. I find it so incredibly easy to stick some beans into the hopper, turn up, insert the pf handle and find a nice fluffy mound in the pf a few seconds later. The clump crusher has stopped the grinds from spraying everywhere. All in all, life is good!