Let's offroad / mountain bike / mtb / ride dirt

Reasons;

1. 70km/h offroad is terrifying on a hardtail.
   
2. Current Yeti is not designed for 1 X setup and chainline is awful. Can't take 36T so won't upgrade to 11spd.
   
3. Fancy something new having ridden it in various guises over the years (incl. dropper, 50mm-110mm stem etc.) - current setup is perfect in terms of comfort, but would be all day worthy if full suspension. 50km is about my limit right now.
   
4. Family addition imminent - will be my last new bike for a while... and the boss has approved.
   
   

29er is certain, 120mm max preferred. Lockout would be nice. Must be XL so 21"+
Speed and efficiency definitely priority over 'air' time. I do neither large jumps nor drops - multiple incidents have put me off!