Respectfully speaking - you can not guarantee this and it's potentially dangerous advice. Failure is not always due to the installation of the patch or plug. Motorcycle tires flex a lot more than car tires, which are what tire repair kits are truly designed for.
I've spoken with a few folks that have had a plug come out, and almost every case involved either higher speeds or lots of side-to-side transitions. Either scenario is not the time to lose control. When the rear tire rapidly loses air, it's extremely hard to steer the bike, not something you need to deal with when traveling at speed around a tight curve. Been there myself - I know how it feels.
I can't guarantee that the OP won't walk out in front of a bus, but if he looks both ways before he steps off the curb he's much less likely to.
Obviously an internal patch or even patch/plug is optimal, but speaking for myself, I have plugged rears (that sounds dirty
) more than a few times and the plugs have lasted the life of the tires. On these bikes, what are we talking, 3000 miles max on a rear on these bikes with the stock tire? A properly installed, self-vulcanizing mushroom-type plug is what I am talking about here, not the rope style plug.
Losing air for any reason at any speed under any condition is not a great feeling, but I haven't heard of a catastrophic plug failure that resulted in faster air loss than the original puncture. In other words, it ain't gonna to blow out. If the OP is worried about his tires doing anything other than sticking to the pavement while in a tight turn he should rethink being in a tight turn in the first place, regardless of whether his tires are plugged or virgin (again, sounds dirty
Besides, you think that simply plugging is dangerous, check this shit out
All kidding aside, don't listen to me. I'm part of the Plugaway clan, but I have kin in the Neverpluggers. Do what makes you feel safe on the bike.