cold patch all the way. if you have a SUV or have them 4WD tires its ok to use the tusok system. i mean the tires are strong enough to the seal that goes with the tusok system. if u only have 4 ply or six ply tires i dnt think its a good idea to use the tusok system, as for the hot patch system, never use it. unless ur tires are really old. and you want to replace them in less than 3 months.i wasted 4 tires a while back because i didnt know about the cold patch system.if you have seen what the hot patch does to the rubber tubes in non tubeless tires then expect to see your tires deformed too.