Ah ok...so 'adjusting the pot' means moving the teeth so they turn the pot through a different section? Cool...never thought of that! Sorry guys.
Apart from that, I stand by the other stuff I said in my post. Those mods make a world of difference! The 68k resistor or any other resistors/capacitors/anything electrical like that you can pick up from radioshack, jaycar or whatever else you guys have in the states. I got all my parts from **** smith electronics, but I don't think you guys have one over there?