I currently have the e-z start and it is okay but the glow plug doesent have time to preheat b4 the engine starts spinning. Also I have serous troble with pull starts(spring snaping, ropes snapping, handle falling off ext.) but I still keep going back to the pull start. I think it is kinda cool. I have yet to use the roto start system just because then I have to cary the glow ignitor and the starter motor in my pocket. So here it is I prefer the pull start for when the engine is already hot, I prefer the e-z start when I am out bashing and all I have to do is plug it in the back and push the button to start. and the ro-to start sounds to be the best for cold start ups due to the fact that you can pre heat the glow plug b4 turning the engine over. Some one needs to make a roto-ez-pull system.