Shredder
Dogs like me
You have a forgiving tip, I have a few different tips in rotation and I have 1 that gives 2 separate distinct clicks and will combust if I go past the second click, others are fine for 2 or even 3 seconds with a single flame jet, respect the click, to start with and work up from there.
I think the heat up is dependent on the heat source. I go two seconds past the click using a pipes induction heater on the first hit and at the click on a second hit. I haven't combusted in forever when I follow this routine.
BTW, I use all ti tips. Ymmv with stainless tips, and the tips do vary, so practice practice practice.
When I use a torch (rarely) it varies on the torch and where I hold the torch. I use a two flame torch on occasion just to keep my skills current, and I still combust if I'm not careful.
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