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I know Stiga Clipper is universally acknowledged as the all wood dumb blade with large sweet spot
But are there any all wood smart blades commercially produced

That's a good question, all wood seven plies like Stiga Clipper or others aren't the same, also bigger blades in general with or without fibers have more sweep spot if that's can help you.

I will go for custom blades so you can have bigger blade and also choose the fiber & wood you want with also the weight (important).