Hello
Have used the 'Stop and Go' system on my bike and car tyres for a few years now.
Used it a couple of weeks ago, when out on a run with a friend on his R1150RT, when his rear tyre collected a puncture.
The piece of metal which entered the tyre and then disappeared, left a 'W' shaped hole, about 15mm across.
Cleaned it up with the 'Stop and Go' kit, and fitted a 'mushroom', and pumped it up to 44PSI, and rode to the nearest pub for lunch.
After lunch, it was down to 42PSI, but we carried on to the end of our route, and then parted to make our separate way home.
He rang me the next day to say that the pressure was still holding at 38PSI, but that as the tyre was getting to the end of its life, and the puncture was at the edge of the tyre, he had decided that replacement was the best course.
Hope this helps.
Crazyhorse