Now that I'm starting to lean toward a Herpstat is pulse proportional or dimming a better setting? Because the VE-200 has the pulse proportional setting, a built in shut off relay, and 700 watt capacity. The Herpstat into + has dimming proportional control, built in safety power relay, and 350 watt capacity. So now the dimming/pulse proportional and wattage are factors.
I wouldn't get the + for a rack. I have C serpent racks with the Herpstat 1 basic. It requires no mounting and you can stack them just like the VE's. It's $6 more for the herpstat 1 basic as well.