Glueless patches are crap. I have tried a few times and have about a 25% success rate. They seem to work initially but most have failed over a fairly short time.
I was on a tour this past summer and got many flats, and used traditional glue-on patches to repair. Every time I got another flat I was worried that the patch may have been the cause, and that I might have to admit it to my touring buddies, but none of the patches failed.