I have a Lizard Leg blue tail clean boost pedal. It's awesome and clean as I've ever heard. Exactly what I've been looking for. works fantastic (with entire board) when I dial it in with my headphone amp or with my walkabout rig at home. starts to slightly boost at about 10/11:00 on the dial and has a nice smooth wide range up to max. here's the issue. When I get into my main rig (Fender Bassman 100T) it actually cuts my volume when I kick it in. I have to set the dial quite high to get any volume boost and then there isn't much of usable range. is the amp acting like a compressor when boost is engaged? If so front end or power section? any ideas? alternatives?