I have a question. Was the Maze a 4 strand weave and with tinned copper? I got a feeling that's the issue. I don't understand why, but I quit using tinned copper for the ground, sure changed the voicing on my Carys. Carys are picky about PC.
I got some weird results with valve amps, and tinned copper on the ground.. I like pure copper grounds and silver clad milspec, woven.. 4 wire two ground, one copper one silver clad. Cook the heck out of it.. BAMB. # 16 - 10 All teflon covers LOOSE armor, Stiff, I'm not a big fan of super flex cable that's tined... (super multi strand)
Maybe in a simi, for starter cable...Welding cable/stick!! Marine and Drilling, stuff.
Regards