I had a 78... Sunburst finish, black pick guard, Maple board. It sounded amazing, but it ended my career as a professional musician. It was so heavy, it destroyed my back. Pinched nerve, that lead to issues with my hands, and thus left me unable to play for extended periods of time without intense pins and needles in my arms hands and fingers.
If you're gigging on a very regular basis, don't get a 70's P. If you're a hobbyist, go for it.
Zombie thread to be sure but this quote just made me wonder if that 11.5 pound sunburst/maple 78 Precision I picked up a couple of years ago has a body count on it!