Treestuff.com and Human provide a look at, and review of the APTA: Air Powered Tree Access.
Wanted to do a segment with pressure used, and the corresponding throwline height, only to learn I don't own a basic tire pump, only one for presta valves. Will do it at a later date.
Product Page:
https://www.treestuff.com/store/catalog.asp?item=11138
