I'm not going to pretend I understand anything about electronics at all, I don't, but I know if something sounds good or bad to my ears.
I had a lengthy discussion with my tech about wanting an incoming bass (which I hadn't even heard or played at this point) to have its guts ripped out and replaced with CTS pots, switchcraft jack blah blah etc etc. Because I had a preconceived opinion of what I assumed would be budget quality parts, I assumed it would be a requirement to replace the "Duncan Designed" pickups because everyone reckons they're rubbish. Everyone's wrong. They might be lower output than the Basslines in my other bass, but they sound bright, and punchy and with a lovely jazz like honk, I think they're great.
I digress....during the chat with my tech he basically said that replacing the parts would be pretty pointless unless they were faulty. Replacing the pickups would be fine if I didn't like them, but why not try them for a bit first, then decide. Great advice, because I loved them regardless of the make or opinions of others. He then pointed out that cloth wiring looks lovely but is no different in performance to the plastic covered stuff already in there. same with the pots, if they work fine, leave them alone, don't waste your money.
So the bass arrived, and with a new set of strings and a setup, it was fabulous just as it was, without any pointless jiggery pokery.
From that, I learned, that I've wasted a lot of money over the years "[i]upgrading[/i]" basses that really didn't need anything doing to them at all.
The funk's in the fingers.....not in the lump of wood and wire they're holding.