I use three 17" Shikar's with a three step aider and can get my platform to 20' without trying to hard. Weight is pretty low. Aiders take a little bit of pratice, but once you get it down, it is fine. I find that keeping my toe in contact with the tree really helps. I also usually rap down as well, as downclimbing in the dark takes a bit more focus.Out on a Limb Mfg Shikar sticks....the fxd version will stack evenly like you want. I personally have the original version and sometimes carry them folded down and other times set up and side-stacked. Somewhere around 25 oz a piece.
The aider is 1” mil spec tubular webbing with a piece of 11mm static rope to help keep the loop open. I tried to cram the knot in there, but there wasn’t a snowballs chance. Ended up having to sew the loop closed and even that was a bit tough to get in. It’s held in by the step bolt.Octobergold, I did the same thing for my single-stick, cut down a lone wolf. Curious on your aiders, did you just loop the sling through the bolt inside the tubing? Is that a sewn sling or were you able to stuff the knot inside the tube?
BTW, I ordered a set of 4 of the timber ninja carbon sticks with aiders after talking to one of the guys there. Breathtakingly $$, but they seem to be the only game in town at that weight that stacks vertically. In theory should be here just before our opener.