In my upcoming build thread (I'm currently pulling the triggers on parts) I will be making a PJ shaped bass body for a 5 string EBMM Stingray Neck. I'd like to keep the final weight under 10 lb. Hopefully closer to 9 lb. I don't want to modify the neck or the heel. So probably my only option for weight reduction is in the body. I'll be using a Warmoth alder blank which starts out at 1.75" thick (typical for P basses), but I'm wondering if I can plane this down to 1.5" or 1.625", and that might save 0.5 lb or so. I can also do a large swimming pool route under the pickguard. The upper horn on the body will go a little past the 12th fret, and with strap locks it'll be almost to the 11th fret. I would hate to thin out the body and then induce a neck dive. I'm paranoid because I have one 9 lb bass that dives and it's annoying, but the upper horn only goes to the 13th fret. I'm hoping that is the main culprit. Also I don't own a planer, so this might turn into another tangential project of building a router sled!