I am finally going to upgrade from my ancient kiln to a modern computer controlled kiln. But when I looked at different option some have doors for bead annealing. I do mor fusing the torch work, but I have done it. My question is, does the bead annealing doors have effect on firing process, and I have always annealed my beads in my fusion kiln, I have never had a issue....yet. Am I ok or just lucky? And lastly, my old kiln was manual, so I have very specific firing charts. I know I am probably going to need new charts for new kiln, are the computer pre programs reliable?