Oh great Gretsch experts... I have a 5127 (baby blue w. black back and sides) incoming (first series with adjustomatic bridge) and find the plain black pickguard to be bland. May go for a white pearl... Anyway, there seem to be many choices for 5120 and 5420 guards---any idea which ones I can buy (which models) will fit right on a 512x? Thanks in advance! Any color suggestions too?