One issue though is the lack of a back on the stool. You can make the case it’s a Good thing but when I really need to concentrate if I’m tensing muscles in my back to keep straight it won’t be the same—or you can slouch which also isn’t perfect.
I spent some time learning Alexander Technique - which is mostly all about your spine, sitting and standing. I can recommend it.
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One issue though is the lack of a back on the stool. You can make the case it’s a Good thing but when I really need to concentrate if I’m tensing muscles in my back to keep straight it won’t be the same—or you can slouch which also isn’t perfect.