Re: RG770 Vai Limited Edition?
I've never heard of it.
But I see people relate any sort of RG to "Vai" or "Like JEM" and other comments of the like.
And there was the special DX verson of the RG770, the normal version was just a bound rosewood/sharkie neck on a RG570 body, with IBZ/USA pickups. The DX version had a clear pickguard on the same RG570 rear-routed body (just like a JEM77FP, BFP, GMC, PMC, DNA, ect) and a Maple/Sharkie fretboard. It essence, the DX is a "limited Edition" of sorts to the regular RG770, and then since its RG/JEM shaped, people will automatically tag "Vai" on there just for fun or case candy.
Thats what I think, at least.