[quote name='Dave Vader' timestamp='1363258184' post='2010488']
I also have one of these, it does wobs. Quite well.
Only real problem I have had with it is the switch often doesn't want to turn off, so I use a bypass looper to flick the whole chain off, problem solved.
If you have tracking problems, stick a boost or a fuzz in front of it, and it behaves itself a lot better.
As for the expression pedal, it would be useful, but a quick tweak with your hand will get the speed you want if you're skint, like me.
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To solve the switching off issue, take the battery cover off, it's the little rubber 'poker' thing that sometimes misses the little button thing. Stick a rubber foot on the end of it or something to widen the footprint so it doesn't miss the little button thing. !!