Long, long ago, I owned a 1968 (i think, it had block inlays) Jaguar, and one thing I remember loving about it was that the trem-arm (or whammy bar) had no thread. It just kinda pop/snapped into place and stayed there and popped out when you pulled it out. Easy-peasy lemon squeezey.
After not owning an offset guitar for many years, I recently purchased an MIM Fender Classic Player Jazzmaster. I almost immediately noticed that the trem-arm is threaded, and needed to be screwed in, like a Stratocaster trem-arm.
My question: Can anyone with a true vintage Jazzmaster tell me if this was always the case for JM whammy bars, or if it's just the new MIM Classic Player's cutting corners? Likewise, can any owners of vintage Jaguars corroborate my memory and verify that they had those "pop-in" style bars?