A lesson learned - "I think".
I have watched a lot of the YouTube videos of Pavel's San Bartolome build. The videos show a neat soldering iron combination that is used to set the planks at the bow and later at the stern. So I thought why not try to replicate that tool. Off I went to the hardware store and found an "inexpensive" 30W soldering iron, added a medium size Drywall screw and placed it my soldering iron holder to heat up. What could be simpler?
Two planks later (about an hour of the iron heating in the holder) I noticed a "slight" problem
The iron and tip before being placed in the holder.
The iron in the holder. Everything looking as anticipated.
The "RO-OH" moment, Something didn't look right.
It actually looked much worse before the iron cooled down.
My conclusion, the combination of inexpensive soldering iron, the placement of that iron in the holder, the length of the iron being powered on, the short length of power cord plugged into a heavy extension cord and "gravity", all added up to the failed experiment.
I think if I had used one of those little prop up soldering iron stands there would have been a better outcome. But I had to try out the tool as demonstrated in the videos.
In the meantime it's back to my original tool, the "KolderstoK" tip.
I can leave this one in my holder for long periods without any problems.
Jan