Re: Phase 90 mods?
I have the Whirlwind Rochester Series Orange Box, it was designed by a guy from the original MXR Innovations company, and is an exact script Phase 90 replica, but with the added advantage of LED and true bypass. Sounds as good as the Dunlop MXR Custom Shop '74, but doesn't have to be modded to have the LED and TB. I recommend it highly. I have all three of the first series Rochester pedals (Orange Box/Phase 90, Gold Box/Distortion+/, and Red Box/DynaComp). All of them are exact script MXR replicas with LED and TB, and the first series is signed in gold or silver ink inside the back plate by the designer. All are great, and made with the same quality components as the originals.
Al