Stingray neck radius - changes over years

[kenito]

Hi, quick question....

I have 3 stingrays (4 string) from the 80s & 70s.
I read a while ago (perhaps wrongly as always) that the neck radius changed from the original pre-eb specs in the 90s.

Is this right ?

Does this mean old pre-eb and 80s rays have a flatter or more curved fretboard than current standard rays ?

 

[Caca de Kick]

The preEB had a more curved top fingerboard radius. The backs of the necks feel flatter tho (like a 60's P bass).
The new Classic Rays have a very similar rounder fingerboard radius.