I am hoping to start working with stainless spring steel soon but had a question about heat treating it. Annealing is not a problem, but when doing some research I saw that you need to bring the kiln to 900 degrees and maintain that temperature for a specified time. Does anyone know whether you put the piece in the kiln then bring it up to temp, or do you allow the kiln to pre-heat to the specified temp then insert the piece?