I've just finished a 40# Yew ladies longbow which has some great heartwood, tight dark grain but a couple of longitudinal splist.
I've persevered with it and afer a ludicrous amount of time, effort and some cussin' it's shooting fine, it looks gorgeous too
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I've clocked up 150 shots so far, I'll be posting it in a day or so.
I'd say listen to your own instincts, if you have the time and inclination give it a go, if not save it for another day.
As a character bow you can always keep it lowish draw weight, suitable for a lady, a kid or a cat
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Del