I am loving the capabilities of this thing, but have one glaring issues with it. When I set it to octave bend and fully depress the expression pedal it does not go up a full octave, it comes up just short. I noticed this by ear right away and then plugged it into a tuner and every note comes up about a quarter step short of a full octave when the expression pedal is fully depressed. I have also verified that the knob on the expression pedal is turned all the way up. I know something is wrong here and was wondering if anyone else has had a similar problem before I start the return process.