I have thanks
I wired the A419 about a year ago and was using it with my Boa enclosure but I recently had to sell my boa so it's freed up the thermostat. I like the idea of having the VE system for my racks so that in the future I can have a central hub eventually with all my thermostats together. I might pull one of my herpstats from my QT rack and put it back on the incubator, and just stick the Johnson controller on the QT.
I was just concerned about have a non proportional thermostat for incubating and it looks like I was right to worry LOL.
Thanks guys,
Chris.