When I used my Benchsource, this is where I ended up, with maybe a few tenths of a second more. I never had any issues and, when I upgraded to an AMP, I really didn’t notice a difference. I switched to the AMP to eliminate the open flame, but would not feel handicapped if I had to use the Benchsource again. I just would have to return to annealing in the workshop.I have a Bench Source and used Templaque to learn my set up. The tip of the Blue Flame touching the case is how I set my torches with a 3sec. dwell time. But someone will come along with better information.