Dual Pump controller with 1 knob

[Izerous]

It would be nice to see a pump controller with the rated output to actually control two 450S pumps but with only 1 knob. The dual pump controllers are great for multi loops since the pumps don't need to run at the same speed. However when 2 pumps are in series it is optimal to have them running at the same speed and with 2 knobs you are always going to be a bit off unless you your either at max power or min power. Thus I'd really like to see something like the CTR-SPD1224 that actually has the wattage output to control two pumps but with a single knob so that you can ensure both pumps are running at the same speed.