For the past few months I've been trying to get myself 2 Dimarzio 7-string humbuckers, namely the Air Norton 7 and D-Sonic 7 for my RG1527, but the effort has been in vain.... SL only has got Tonezone 7, PAF 7, and Evo 7 as of now, and scouting the 2nd hand market has likewise been in vain...