Posh for me, all the benefits of synthetic with none of the downsides of natural. Since you buy it by the roll it's a little more fiddly to turn into ropes but it means I can turn it into my preferred lengths (9m) as well as cut a few short (cheat 🤫) ropes.

I'll go one step further and ask if we could get diagrams like these to accompany each of the videos! Often when I'm in the process of learning a tie or revisiting it I just need a very short reminder/refresher to jog my memory and trying to find that point in a video is very time consuming.

Does it make a difference if you don't incorporate the hands into the suspension line? I presume you could use an epsilon for the suspension line if you wanted to do something different with the arms?