my MIA P with lightweight tuners has none, ever so slight neck dive on my Vintage V4, as @Misdee says it all about where the strap attaches, I think that's why Fenders have a big horn where the strap attaches to stop neck dive and it works. I've got a Yamaha acoustic which has neck dive, that attaches to the heel of the neck. Epiphone SG's have horrendous neck dive, mine was unplayable, which also attaches to the heel of the neck, why they put it there God alone knows