Reporting question for Amp Kit - MOD® Kits, MOD101 guitar amplifier

Product:
Amp Kit - MOD® Kits, MOD101 guitar amplifier

Question:
Is it easier to do the master volume and shared cathode split when you first build the amp, or is it ok to do those as add-ons after you build the amp

Answer:
If you are planning to do the mods for certain I'd see no reason why you couldn't pre-drill the enclosure.