I would not recomment him to use them both. But to choose between them. How's the PU differant than the noisewash?
A ringmodulater is a good idea. Do you have schematcis of bitcrushers?
best regards Ronald
The PU is more controllable and predictable; it sounds more like a really intense fuzz which feeds back. The Noise swash is more of a crazy sputtering noise making box, unpredictable. If you search the boards, you can find the analog sample rate reducer and digital lo-fi box info I've posted.