I really don't mean this to be advertising. I've heard about lots of people having trouble with neck diving on their guitars, and I came across the site. Their crazy new innovation to prevent neck dive is putting weights in the strap, near the body to counter balance the guitar neck. The only bad things are that the strap is made of the really cheap stuff, polypropylene, and that they're $50. But its better than having to drill a new hole into your guitar.

I have no idea if it works, but it seems like it would.

Heads-Up straps: http://www.headsupstrap.com/index.html

(Will delete if everyone and their grandma have seen this)
This post may contain my opinion and/or inaccurate information.

Current Rig:
2006 PRS CE-24
Mesa/Boogie Mark V
Voltage S212 w/ V30's
Strymon Timeline
CMATMods Signa Drive
TC Electronics Corona & Hall of Fame
"Relaxes your arm so you can play better."

I never knew a strap would make me better at guitar.

Either way, neck dive doesn't really seem to be that much of a problem with me.
I don't believe in signatures. Ah, sh...
Why would I pay $50 for this?? I can attach some weights to my current strap with tape or whatever pretty easily.

"Punk is not dead. Punk will only die when corporations can exploit and mass produce it."
Jello Biafra

(so is it dead?)