I was a little surprised but pleased at the same time to read in the latest ME, Martin in smoke rings had to make some parts several times, I thought it was only me that did that. I recently had to remake a cylinder on my long running Emma Victoria build. First I drilled the exhaust connection in the wrong place and it came out into the cylinder. (the old adage measure twice cut once, read – you can measure a thousand times but its no good if its from the wrong place) I sort of repaired this with a piece of bronze rod silver soldered in and carefully rebored, not perfect but I thought I would see what I thought of it in a day or so .The next cock up was the drill wandering off in the angular steam passage from the cylinder ends, they broke out in the wrong place entiirely. Time to admit deafeat so into the scrap bin it went.
A relative beginner I sometimes despair of ever getting competent, sometimes I know where the problem lies, I tried to take a short cut which as we all know rarely works, other times I find problems depressing as I thought I had taken great care.
Still, spurred me on a bit now, thank you Martin.
Bill D.