For the trees with a couple limbs, have any of you tried attaching a single aider to the bottom of the platform to stay tethered in, move the HC strap above the limb and be able to get back up onto the platform and keep climbing?
I've read this 10 times and can't figure out what you're describing.
For going around limbs, safest way is to
1) attach lineman's belt
2) detach tether and re-attach above the limb
3) detach lineman's belt
4) climb a bit, at height where hand climber seat can go a little higher, settle into saddle and pull the hand climber seat close enough where you can release the belt
5) re-attach hand climber above the limb, and continue climbing.
This may take a little gymnastics but nothing too serious.