I agree that P-bass necks are not chunky. Mine is actually really thin, but 1-3/4" wide. My Ray is an oddity, nothing like any specs I've found, it's truly a baseball bat and the chunkiest neck I've held, measures in at 1-3/4" wide and somewhere around 0.9" thick.I don't think a standard issue P is chunky at all. They are wide, but road-kill flat. The biggest round neck I have ever run across is on early bolt-on Thunderbirds. Those are 1.75" at the nut, deep, and round. Like a big ol' neck ought to be. The only one deeper was an unbranded Japanese bolt-on hollow body. It had a neck made like a glu-lam beam that felt almost like an upright neck. Unfortunately, it was a short scale and didn't do anything the EB-2 can't do, so it went. It sure had a properly shaped neck, though.
I get along with the noodles that are Thunderbird necks because they have round backs. I never did quite figure out the attraction of flattened out Fender pancake necks.
My 2013 black TBird matches your description of them, 1-1/2" wide, but a rounded back. My 2008 white TBird is another oddity from the sounds of it, it's 1-5/8" wide and it feels more like a 'D' shape, rather than a 'C' or 'U' shape like my 2013.



and have the bass/guitar angled up....

