I've been working with the cob slipform method (using forms to shape and construct cob walls) since about 2020. I would definitely have a hard time going back to hand-sculpting cob walls. Unless I was only interested in getting that more organic, uneven look to my walls. But in this video, I explain more of why I won't be hand-sculpting cob walls anymore. The new method is so much better in almost all aspects.