Gonna crash your post with my P9 - cept i built it 29er style - Large, 5'11.
1) I'm surprised you found a 210x60mm shock. I had the same issue with the Super Deluxe delays so i just said screw it.
2) I tuned my whole setup at whistler bike park and this thing is too unreal. I love it.
I came from a 2016 Reign 27.5 Medium which was smaller and slacker. I am very happy with with the 66.5 HA with my current setup from riding a Norco c9.1 Large, my issues was that the wheelbase was so long from the slackness+29, i couldn't handle it properly. Turns in and out of berms was on the Norco required a lot of body english, overall just felt it required much more finesse than required. With this p9 as a slightly steeper HA - 66.5ish, it felt right - agile like the Reign, but much longer and much faster.
My Specs:
DVO Diamond Boost - 150mm (currently at 66.5 degrees HA - 160mm would make it 66 degrees)
DVO Topaz - 210x55 (22mm bushing top and bottom, 150mm travel)
GX Eagle Drivetrain
Magura Trail Sport Brakes (203/180)
Spank Oozt 345 Trail CX Ray - DHR II 2.4 WT DC
Giant 150mm Dropper (2017 - internal routing)
SDG Fly Mtn Saddle
Answer SL 780mm Bar
Husselfelt 40mm Stem
Lizardskin frame and Chainstay Protector
OneUp Composite Pedals