I have a 400 series. If its only gonna cost you an extra $400
for it thats what I would do. The best strategy would be to go
play and inspect them side by side, when I was buying I
did not have that option.
My bass is now 2 years old, and it just keeps improving in
its sound. I look forward to my evenings when I have the
time to play it
Looking 5 years or more down the road I suspect
the fully carved will resell better too.
Good luck with your decision,