Shotgun with different cables

Normally a so-called shotgun cable configuration is referred to as two IDENTICAL sets of speaker cables per channel connected to a SINGLE termination pair a BOTH the speaker and amplifier side.

Now, I’ve had and still has made very good sonic findings running two DIFFERENT pairs a speaker cables per channel, in my case combining a solid-core silver cable (Mundorf SIlver/gold) and a stranded, tinned copper cable (Duelund DCA16GA). Please note I’m not bi-wiring, but simply running two different cables from one termination point a the amp to one termination point at the speakers (of course in an identical fashion for each channel and ’+’ and ’-’ as well). As an outset I’d find running identical cable sets in a shotgun configuration a less interesting idea than going for a complimentary effect in combining two different cables. So why I am hearing of this configuration so rarely, if at all?

I’m guessing there’s a theoretical stance that would hold this kind of configuration a non-preferable solution (electrical properties gone "haywire," so to speak), in light of it being rarely used /talked about. But again, why really - what’s the technical (and theoretical) explanation that would have us shy from the solution of different cable sets in a shotgun configuration? But most importantly, where’s the actual (non-biased) experience - that is, experience that has come to fruition in likely not being affected by (a possible) theoretical consensus?

Let this be a challenge: try a shotgun configuration with two different sets of speakers cables, and let us know YOUR sonic findings.