90% whole wheat sourdough, as flat as it was yummy

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Hello slothbear, I have been doing 80% hydration ww doughs according to the link you posted above with great success. I tried 85% and though it rose nicely like NY ( :D I love that), it was too moist inside for my liking. Yesterday I made 100% WW baguettes for the second time and they were really yummy. BUT, everyone's flour is different!!!! So you might want to go less hydration. How did your dough look after kneading? Was it too flacid or was it firmer? Mine has been able to form a nice ball right after finishing kneading but after the night in the fridge I think it flattens out. But after the folding it gets much firmer again! Let me know. Take CAre Srishti

Another thing you might want ot keep in mind is proper shaping....

Make sure you get sufficient surface tension and make the tight.

Also maybe you overkneaded????  which I have heard is easy to do in a mixer!

Just trying to guess what might have gone wrong to get that LA of a bread!