RG-2020x you say?
Well, despite being labled 'Prestige' i don't consider it worth anything more than an RG-520 with a DoubleEdge stuck in it.
The RG-3120 on the otherhand is the TRUE
Prestige guitar....and to me it only seems sensible that it should now be available with the DoubleEdge. Hell, just make another variation and call it RG-3120x or RG-3030x, but dont go labelling something as dull as the RG-2020x 'Prestige'.
So, that's my vote for an RG3120 with the DoubleEdge