Boom - even better than just the sag, you dial in the sag AND the voltage. Very cool to play around with. Amazing how much different tones can be brought out of a wah by playing with this little box. All in all, I am very impressed with this company's products. Tom is a genious, answers email - even very detailed and long emails from me too.
Prices are right.
Products all look rock solid construction wise. I am highly impressed.