THAT's a lot of buzz
I usually let the bass acclimate inside the package for few hours or a day before unpacking, to avoid any thermal/humudity shock, it's mainly for the finish but could affect the neck as well. It's hard to do, but a good way to respect it.
Can you check your frets with a ruler? You may have some high/ or worn out frets here and there.
Also check for a possible twist in the neck (which I doubt you have because it's a 5 piece quartersawn neck - very solid), check if you have the same neck curvature below the B and below the G.
Generally, if you have less curvature below the B and more curvature below the G, it's not a very good sign, unless it's really minimal and probably fixable by Plek (0,15mm difference max)