As TWB said, I'd perfect my tyre & tube changing at home in the comfort of a garage, it's the only guaranteed result. I had a puncture at the start of trailride last Saturday AM, removed the wheel & tyre to check what had caused it before fitting a new HD tube followed by the tyre etc. Back on the road within 30 minutes or so.
I used the foam repair once & it didn't work, never bothered again. Had a 3" gash in the side of a friends R12GS on a trail in the Pyrenees a few years ago. Popped the tyre off & fitted the spare 18" tube from my KTM in to his 17" BMW wheel, all done with the bike on it's side & the wheel attached as he'd lost his toolkit, unable to remove the wheel.
No amount of gloop/Ultraseal etc will fix something like this:
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