That's interesting I frequent the NYC area shops that stock vintage instruments and my JO4 is almost as close as I've come to the 62 - 64s that I love. I can't say the same for the other JOs I've played through just the one I have.
The JO5 has Lakland PUs and sounds very harsh depending on the rig I use. That being said on louder funky gigs I use my SA410 and Glock head and it kills, although I kringe playing it at home through a Focus and NL210.
Not sure any of that makes much sense.
I've only played the 5 string ash/maple skylines with Fralins, and those are not my thing (personal taste there).
