Bi-amping my KEF R3 Meta speakers.

This might just as well fit into the amp section or maybe just why bother. Since I had my M80 Yamaha amp repaired, I find myself with two power amps. The other is my Emotiva A2. Since I had them both, I purchased a simple A-B switch box so I could compare the two and see if I liked one better than the other, My 76 y/o tinnitus ravaged ears can detect no difference. Both have more than enough grunt to drive the KEFs. The Yamaha is rated a 330wpc in 4ohm and the A2 is around 250. So, it just struck me, what about bi-amping.

OTH, why bother? The amps are way under stressed as I'm feeding the lows to dual amplified subs. What say you?