I have the new Guild Starfire I (in Walnut). Neck dive is there but no worse than on a Casady. I must say that I'm very tolerant of neck dive, I like oddball instruments and I currently have *only* basses with neck dive issues, haha. Get a strap with a coarse texture and the issue sort of goes away (you do feel the pull on your shoulder though). One day I will have a custom bass made with two or even three Bisonics (in a smaller form factor though) and that bass will be a 32" hollowbody (Casady style, with some heavier bracing along the back and possibly a solid portion for the bridge) but it won't dive. I wonder whether it is possible at all (I'm thinking of a longer solid upper horn).