Wow, I can't believe how fast this project went. I hardly even recall sewing anything and it's already over ! Perhaps it's because I'm used to sewing meters and meters of skirts all the time :-D
Anyhow, I'm done and I'm very pleased with the result, especialy the sleeves. It was the first time that I was trying out such a construction and I love it. As I said on my LJ, the ''elbow shape'' totally eliminates the creasing where the arm bends so that's obviously how they managed to make incredibly fitted sleeves with no apparent creasing what-so-ever. That type of construction would probably help with the problem that I,ve been experimenting with my baby-yellow Moy, the heavy wool totally cuts the blood circulation in my arms when I bend them because of the lack of stretchability in the fabric and at the end of a day I'm totally bruised. The roundish shape at the elbow's attachment really reduces the amount of extra fabric gathering in that area. God those people were total geniuses !!! I didn't make the sleeves really fitted to my son's arm but to mine. ha's how I can attest that it works so well. I really regret not making my son's jack sleeves that way, he'd really be more comfortable. But I needed to test this type of construction before experimenting with more expensive stuff. Here's what it looks like overall, along with a close-up of the side opening ;