Learning generally boils down to "Repetition or the avoidance of pain", some people learn by doing, some by watching and some just have to pee on the electric fence.
Whether you think that you can, or that you can't, you are usually right. Henry Ford
Butcher gave me a bunch of trimmings, so did some more testing tonight. Holds temp perfect. Opened each door for 30 seconds and in 2 minutes it recovered within 5 degrees. 3 minutes to full recovery. I'm in love!