With the current open-coil XR Quad coil 7 and 8 string design (image right), there’s empty space at the sides when placed in a guitar with a soapbar rout, which is quite common in extended range guitars such as the .strandberg* Boden. One solution is to position the two double coils closer together and add a ring, following the footprint of the soapbar, around the assembly (3D rendering above).
What do you think?