Triode or Ultralinear mode


I have a Cary SLI-80 F1 which can run in triode or ultralinear mode. I have nough power in the triode mode, but find more excitement/energy in the ultralinear mode. What are other people doing? Is there something special in the triode mode that I am missing?
crwindy
To my ears, my SLI-80 siunds better in the UL mode. In the triode mode, it sounds flat and thin, but with better midrange. The speakers are Silverline Sonata-III.
My modified Consonance M800SE Monoblocks seem to sound a bit more dynamic in UL mode. This is with 89 db 2-way speakers. I had been running them in Triode for many years and recently switched. I find the difference depends on source material and usually is minor.
My Aric Audio amp is switchable also and I usually prefer triode.It's not thin sounding at all,the timbre is better but of course won't play as loudly.If I'm in the mood for a big dynamic sound I switch it back.I'm also betting more efficient speakers are needed.
I turn the amp off when switching modes per Aric's instructions.