I read Ishi didnt like to take his bow out in damp weather,, if you could hunt every day,, you could probably be picky about the weather a bit,,if you got caught in the rain,, and your bow was damaged ,, that was just part of hunting,,,,A self bow with rawhide or sinew string would not be a problem, just take the string and put is in a waterproof bag,, wait till the rain stopped and hunt again,,