Darren, congratulations on your progress. Folks here might be interested in a product called Tempilaq which when dabbed onto an item will indicate when the item has reached a desired temperature. You order it according to specific heat ranges. Not cheap at $34 for 2 oz. but useful for some applications. I'd read of it's use in annealing brass. Also useful are inexpensive digital thermometers that take a variety of K-type thermocouples or even non-contact thermometers although I recently learned a painful lesson that one must calibrate these for the emissivity factor of the item being measured. I'll admit to Bill that I am often guilty of overthinking but for me all of this is a hobby and learning is the fun.
With regards,
Fred
