I have a broken 1960 Gibson EB-0 that's been sitting in its case for years waiting for me to restore it. I think I'm about ready to do so, but I don't like the DiMarzio pickup that's in it a whole lot, and I'm going to replace it with a vintage Gibson pickup or possibly a Dark Star if the price comes down to something reasonable. Would a Dark Star fit in the standard Gibson humbucker rout without extra routing? Do you really think a Dark Star would make much of a difference in tone to where it's worth it to pay so much for one?
... And I like the idea so much that not only did I buy the pickup but had a bass built around it! ...