I've used the cheap forte kit from performance and never had an issue with them yet (4 or 5 patches used). Doesn't take that much longer than a self stick kit and certainly have a better track record from what I have seen. For what it's worth I carry a spare tube but have never needed it. I haven't been riding that long but with all the flats I've had so far I have been able to patch them on the road and it doesn't really take too much longer than than swapping the tube. The last patch I actually had to put over another patch as a piece of metal made a hole right next to an old patch. It's been over a week and it's still holding just fine.