That's why some have switched to black walnut. But even that needs to be properly cured, cut, and sealed if it's going to be dimensionally stable. At least the drying of walnut goes rather fast, instead of taking a couple decades like real Caribbean "(Hondouras") mahogany. That was once used that for masons level due to its superb dimensional stability. After that was gone, the knockoffs using lesser mahoganies would warp or bend in a matter of weeks in a humid or moist environment. So next, special laminated woods were used - much better - it took about a whole two month more for them to warp! It got downright silly when they got equipped with electronics level and angle sensors advertised for being accurate within a degree, when the level itself was so bent that it looked like it had been used for a crowbar.
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