Hey guys. I've been away for a while, had some IRL stuff and hardware failure that kept me from streaming, and forgot to post my findings when things started working again. You can actually skip the first cocoon by climbing the pole next to the balloon. And when you do this area in another mission, the tiles are on the floor, so you don't need the jump at the end.
Really? Because I tried that, and I couldn't land my cocoon near enough to grab them by the ledge. But if that's true, we have really easy way to get sub 1 hour.
You just have to make sure you're standing before jumping. If you're crouched then you get just a bit less height on the throw, even though they look identical. And iirc you can just jump in place, so the timing is quite easy to learn.