One of the problems with the glueless patches is they have an adhesive that's heat-sensitive. I've had one come apart at the most unfortunate time while bombing down a mountain at 50mph+. The heat generated by the brakes can heat up the tube to about 150-F; well within operating-range of the tyre & rim. But the adhesive on the glueless patches will soften and the scuffing between the tube and tyre can squirm the patch off.