Right now I'm playing with an ergonomically reasonable current and on/off switch combo, current on bottom (East/West knob) and switch on top seems to feel good.
(Thumb on top/on off and finger can roll current if desired on bottom)
Looks like most (all?) of the ones on the market try to do it with one control like a foot pedal.
IMHO that's silly for a hand control setup, as at least I still have 4 fingers and a thumb on each hand.
(Machinists might have issues with it >-) )
This will allows remotely setting your current (OR roll up down) but also allows simple on/off with whatever current you set last w/o having to "find" it again.
The only issue I have found is finding a really small 2W pot I can make work for the Synchro too...
Has anyone repaired (or just taken apart to look at) the Miller E/W control?
Happen to recall the part# or manufacturer of the potentiometer?
All the 2W single turn pots I have looked at so far are probably too large to be comfortable.