What’s with the dip switches?
The three internal dip switches allow you to fine-tune the character of each transistor stage. By default, they’re in the off position (down towards the stomp switch), when you flick them up an extra resistor is added to the circuit, adding a bit more compression and making that transistor sound more like a thicc overdrive than a fuzz. You could think of them as taming the circuit a little.
Each switch only impacts the transistor/gain stage they’re labelled for; for example, if you like the sound of the 3rd transistor stage being reigned in a little but like the 2nd stage as it is, flipping the 3rd switch up will only alter the sound of that transistor stage.