Seems like I was right on what I felt I needed on a new bike to go faster on DH.
>higher stack
>29 up front
>longer wheelbase
>2.3mm 203mm rotors for better lever feel
First 2 rides yesterday without any suspension settup other than ballpark fork pressure and front/rear tires pumped to 2.2 bar. Easily get 2nd/3rd in strava from PR and got a PR on a section. The vivid coil is plush, the bikes sticks to the ground and has a lockout for climbing. The 3.1 Zeb is plushier than my 2.1 lyrik even with less sag though I feel there's a volume spacer and a bit more pressure than I should have.
I now just need some 31.8 high rise bars to help with the harshness. Detune the shock to soft from medium as the rebound speed is slower and it feels sluggish(or use a lighter oil). And probably a front saint to match the rear but I can wait, the mt520 is pretty good.
On climbing, the steep seat tube and a big max insertion depth to run a 200mm dropper finally made it comfortable to climb with, no more kneepain nor need to move the dropper post up/down each time.
The bike is heavy, the rear specifically.