The newer Fender 5's have more focused B strings, I have observed that certain design changes over the years have made quite a difference. (mid 2000 when they went to the 4 + 1 headstock, started using different string tree's-I think the B has better tension due to this alone) and ditching those "Noiseless" pickups which lacked response on the B string especially.
It's not just the name on the headstock, it's the little details that make or break a B string on a 34.
The MIM late 90's V'ers had a really nice neck profile that people still talk about. However the pickups and 5 inline tuners/string tree design = fail in my opinion.
The Warmoth necks I reshape for my Deluxe V builds are all reshaped to match the 99 MIM neck profile and I copy Fenders design changes through 2010. The result, a killer 34" scale bass that resulted in all my Fender, Sadowsky, MTD and F Basses going to the classifieds.