Hi ,
Yes the Tube screamer block is before the amp block. And yes all 4 mission pedals are connected, and I use the right 3 at the moment. The setup is on You Tube (pretty easy to follow there because you can start and stop and rewind where needed) plus info is in the manual. The 2nd from left is a spring loaded pedal used for adding a leslie rotor sound, the farther you push it down the faster it go's, and released it slows and turns off. The right one is volume, and the far right one is spring loaded too, and used for wah. Full heal down (normal untouched setting) is off, and I matched the pitch of the wah when rocked forward about 10% so that I could barely tell pitch difference when it was turned on, it sounds pretty seamless when going on and off. I also adjusted the start and ending frequency of the wah to my liking. No ice picks or too lows from the wah-wah here. Yes all this and more are adjustable! Thanks again for all the kind words!!!