Can I suggest that you leave Skippys post in this thread and also duplicate it in your new thread, the post starting;
"It's amazing how conversations on this Forum can dive down unexpected, often entertaining/instructive "rabbit holes".
This is not one of those beneficial digressions - there are certain people who have voiced opinions, completely unrelated to the maintenance of Rotax 9 engines regarding the installation of spark plugs.
I warn Rotax maintainers against these opinions (anti size and unspecified lubricants) - they have no application in the installation of spark plugs in Rotax 9 engines.
......... "
and then move all the posts after that into your new thread.
I did not use your new thread as the context of the discussion would be lost.