Yes, thank you, Laurent @terb . . . I was referring ONLY to the Fender Jazz Basses in my response to @bjams post above.
You are quite correct . . . big difference in feel between their P-bass and the J-bass necks! The Vintera '70s Jazz Bass listed on Sweetwater has a 7.25" radius neck.
It gets really confusing when it comes to the Fender Jazz neck “shapes”, though:
They have C . . . modern C . . . slim C . . . custom Thick C . . . and 60s C, in addition to the 70s C which is the 7.25" radius on that Vintera '70s Jazz . . . .
The neck “feel” is very important . . . I also didn’t realize that Fender changed the neck radius back in the early 80’s, so thanks for increasing my knowledge base!