suj2k

Hello everyone! The Pod HD500X is working beautifully! Its more than I could ever ask! Just had one Question/problem. I have a show coming up and one of the songs needs a Wah effect. For the life of me I can't figure out how to switch the expression pedal between EXP 1 and EXP2. The handbook says to push in the toe end of it but It doesn't switch between EXP1 and EXP2. It seems like its stuck on EXP2. Any idea how to resolve this?