Thanks turnerminator and hangNout!
The poles seemed a good length. Although to be honest, setting the poles while taking your seat was the most awkward moment of the whole chair use experience, since they don't have tips like hiking poles to firmly plant. While repositioning them, it is possible for the poles to fall out of the sleeve, or become disconnected. When that happens, it is hard to correct from behind your back. But this can be avoided with a little care and practice. Just a tiny learning curve for looser fitting poles.
"Better living through Hammockry"