I use this wah pedal (current adapter fed) between my Profiler and my Les Paul. I have an exact rig for Sweet Child o'mine so in the second solo I use the wah. It sounds awful: only a l ot of squeaking en no audible wah. The pedal is quite new so why does it sound so bad. Is it the way it's connected to the profiler or has it something to do with the fx chain?
I also tried an expression pedal and used Frank Elze's wah type but this sounds also bad, unfortunately.