Thanks Joseph. I agree totally. My plug kit is Safety Seal too--it will do the job if it's the only option, but I will certainly go with the internal patch if I can. Maybe I've put too much faith in being able to find a responding tire service. I don't have a good option for a spare, unless I pitch one in the back of the Jeep--but that's where I carry my folding e-bike. Might have to reconsider, though.