These DS-1 mods are designed to turn a widely available, affordable, and reliable pedal that sounds bad in most contexts* into a jack-of-all-trades box of dirty boost, drive, and all-out distortion. With as few as four or five component changes you can turn a $20 pedal into useful dirt that can flatter any guitar and amp combination.
* “Icepick” being the most common descriptor
If you want to take my “Simple Dog” Metal Zone mods further, here are more ideas. In keeping with the naming convention I’m calling these the “God of Cake” mods; you’ll feel like a young Allie Brosh playing through your sugared-up MT-2 once you’ve done them.
Here’s a set of simple, no-soldering-required mods that turn the stock Metal Zone into a pretty good-sounding hard-clipping dirt box with a great EQ section. They’re perfect if pedal circuitry and soldering looks like triangles and helicopters to your brain (like Allie Brosh’s Simple Dog, who I love); all you need to do is take some parts out with your diagonal pliers.
One Falcon Heavy Drive prototype was built and gigged before the first run of Falcons. It had three JFET stages (the third was only available on channel two) and some different mid notch and clipping options.
A bass-specific version was breadboarded but ultimately folded into the main Falcon Heavy design.