I think it all depends on the person. I think Nolly has worked with Tim on some pickups, and MDV originally laid out the idea for what became the Aftermath. I'm not sure though why Tim would for them, but not everyone. He probably has a very good reason. If you want to get a custom one though, there's no harm in messaging Tim. But if no luck, try Bulldog pickups. Hayden from there used to work at BKP and he does some great custom pickups.