Originally Posted by
dddd
Well, I wouldn't make any generalizations about which generation is doing what. The rema patches are designed not to stretch, what you're seeing is the elastic feathered edge region stretching and that's it.
The patches may not stretch as much as the tube but they do stretch enough. Blow up a tube with a properly installed patch on it to 2 or 3 times its flat size and watch what happens. In the tire, the tube doesn't have to stretch nearly that big so it really isn't a problem.
I think some of your problems may lie in the false economy of cutting your patches up. A patch kit is cheap. A box of 100 Rema patches is around $14 which is dirt cheap. You can even get small size ones...the F0...which work nicely for goatheads.