It's a fact that your M60's support it. So if your receiver supports it amd you've got the extra channels and the speaker wire lying around, why not try it? It won't cost you anything, and you're certainly not going to cause any harm to the system.
Maybe it'll sound better. Maybe it'll sound exactly the same. Maybe it'll sound worse.
Whatever the outcome is, you can easily decide for yourself.
As I said, I believe that my M80's sound a tiny bit better when (pseudo) bi-amped. That's all it took for me. Is it in my head? Maybe, maybe not. But that's all that the enjoyment of music is anyway.
