That's a kickass system man!! I don't have nearly that kind equipment but I feel like you may be moving sideways - but have never heard the champion , it may be on par with the wt. maybe experiment w diff carts?
$5k Upgrade
I have a clearaudio champion, zyx airy3, and k&k maxxed out phono. Thinking of upgrading and considering well tempered amadeus gta or versalex, new cartridge, or even new phono like herron vtph2. I don't necessarily think there is anything lacking, just chasing improvements.