Ver, you have a PM.
I think I'd be a a good candidate to beta test these things. My OEM plug (which was an old-style plug, my bike being a 2001 - and the plug was not leaking) was removed at 600 miles on the bike and then gooped with ThreeBond 1104 and replaced. I pulled that plug at 5200 miles (it was not leaking), then reused it after cleaning it up as good as I could (the 1104 was
extremely hard to remove). I gooped it with the 1104 before reinserting.
That time, the plug started leaking after only 100 miles (5300 miles). I suspect that I probably damaged same in my futile but vigorous efforts to remove all traces of the 1104 from it. I then swore off of the 1104. While it worked well, it was just too hard to remove. In any event, ThreeBond discontinued the 1104 some time ago.
At 5300 miles, I popped a brand new (old-style) plug in there, gooping same with
Permatex® Ultra Copper® Maximum Temperature RTV Silicone Gasket Maker.
That plug started leaking at 9600 miles (i.e. it lasted 4300 miles). At 10,100 miles, I replaced it with a new style (solid rubber) plug, gooping it with
Permatex® Ultra Rubber Gasket Sealant & Dressing.
Now, with 13,900 miles on the bike (3800 miles on the plug), I've got another oil leak that looks a lot like a head plug leak. I'm not
absolutely certain, as I've not torn into it yet, but my money's on the head plug. :'(