If you find the repeats too quiet even past 12:00 check to see if the pad inside the pedal is engaged.
Set it to 0dB
If you need the pad and still aren't happy with the level of the repeats you can try this mod:
What you could do is modify the linear pot to be "Reverse Log".
In order to do that, you need to jump a 1k resistor from the input to the output of the mix pot.
Here's an ugly pic to show where it goes (and you'll probably want to cut the leads shorter on your resistor so it doesn't short on anything)
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