RE: How long to get settled in?
My climber routine is just about as tedious as yours. (except I usually have to adjust the seat to deck height a couple of times to get it just so, there's another 3 minutes) And yes it stinks.
Especially when I'm getting blown on while rackety racketing up the tree.
So this year I hung two lock-ons in my primary homey holes so I can just climb, attach the safety harness (whichI wear on the way in) pull up the bow and be ready.
I'll still use my climbers, but not as much as in years past. You can't beat their mobility.