No worries
Andy,
You're very gracious to be concerned, thank you. I think I might have set off some misunderstanding. I didn't get discouraged by your comments. I'd noted your experimenting with pistons thought that perhaps I'd be better served trying to keep as sharp a piston seal as I could by running the engine 'just enough' on glow that it could be persuaded to fire after a toot from a heat gun on the cylinder. The idea being to let the engine seat itself at Diesel running temperatures as opposed to glow temps, all the while not trying to wear out the piston seal (in Diesel terms) by lengthy glow breakin runs.
This sounds like one of those experiments I'm going to have to do soon's the weather cooperates.