Thanks for the article. This is exactly pointing at the problem I was having and what I discussed with Tom in my last technique videos about 2 months ago. Unfortunately my habit of getting the elbows as high as possible has dug in over several years and is hard to get out of the system. But it only became obvious as soon as I hit 100 kg in the squat. The bar began to feel "funny on the back" and at least on the rep 4 and 5 of a set it was out of position, which made the ascend look a bit ugly. I still could work it up till 107.5 kg. Than the pain in the arm was too hard and I couldn't finish my sets although I had the imagination that I had enough power in the legs. This also compromised the next exercises, as I could not do any pressing movement with the arms after that. I recognized, that my elbows were getting alot higer with overextending wrist as soons as I started to come out of the hole. While I was starting the set fairly narrow with the hands, at the end the hands had moved out at least the width of the hands itself.
I've taken of weight and it's getting better, but I'm still not there yet.