You do know that the Ocean Cast did come first, and that they voiced the original DB series long before FUNimation started doing it in-house, right? They didn't just do Z.
And since you are a fan of the FUNi voice cast, I have to wonder, doesn't it bother you that they've since re-dubbed some of their own work? If you're nostalgic toward, say, season 3, doesn't that annoy you that that recording doesn't exist anymore?
(Geez, being a fan of dub DB is like being a fan of Star Wars. Constant reversioning to be consistent with a newer version rather than the older version as well as production/chronology disputes.)