How is it way to hot?? People use 3000f to anneal for a set amount of time. If only dipping the necks for 5-8 seconds, you arenít over annealing. Temp (500c) is transferred thru the neck almost immediately. They get no where close to melting temp of 1800f. Still not seeing why a high end controller is needed for this. On-off is fine for what we are doing. It is keeping a range not to the degree. KISS principal works fine here.