I have a Bad Monkey guitar Pedal. What im using to power it, is an old telephone adapter that i have modified so that it inserts into the pedal. The pedal says to use the Digitech adapter, which outputs 9v and 300mA. My adapter outputs 9v and 450mA. Is this good for my pedal? Or should I just pay 20 bucks (Ugh) for the real adapter?