I also have one. This is a great wah. Yes, it takes a while to dial-in. but the effort pays off. I should say that I am using a Xerograph Deluxe with and expression pedal. I does not work as well as a true wah pedal. On the other hand it works very well and is more convenient since I only have to mount the pedal on the board.
Basses: P/J F'less, MMSR4 Classic, 60th Anv P, P5, Jack Casady
Amp: ShuttleMax 9.2, FearFul 15/6/1