I've been making sourdough recently and trying to get the knack of using a really wet dough. I've watched a number of YouTube videos, and I do all the stretch and folds and periodic reshapings, and this all seems to work - the dough builds up some tension and becomes much less sticky to the touch on the non-seam side. I do all this in a pyrex tray.
The problem comes when I tip it out onto the bench to do the final shaping. Then, although I flour the bench, it starts to stick to it quite badly, and then when I try to pick it up to put it in the proofing basket it just turns to slime, loses its shape and becomes very sticky again.
I then leave it to proof overnight in the fridge, and while it rises perfectly it sticks to the proofing basket, which causes it to deflate in the oven. This is despite covering the basket with large amounts of flour beforehand. I'm assuming this is partly because I've messed up the tension in the dough by not picking it up properly.
My questions are (1) is there something I might be doing wrong that's causing it to stick to the bench and become very difficult to pick up, and/or (2) is there a special technique for picking up wet dough off the bench? In the videos people seem to just deftly scoop it up into their hands and it doesn't look especially difficult, but I might be missing something.
In case it makes any difference, our bench top is made of metal.