Originally Posted by
MooneyBloke
Interesting. In four decades on sew-ups both garbage and excellent, I've never seen a displaced bubbles if the tire is in good shape. The path of least resistance is through the puncture or at least very close. I do pinch the tire to look for tread cuts in the area to be doubly sure though.
I will defer to your far greater experience. Perhaps I had one bad experience and never went back. I do have a tire right now that I could have another go at it with.