Farmers have it easy...all they need to do is sell the board at the Top...being that they are already long. Once you learn the patterns and know where you are in that pattern you will know when you are right or when you are wrong. The battle is between the ears, not on the paper. By saying that it can't  be done is a disservice to the farmer or the trader. I've conversed with a broker for over 20 years on a forum that trades the meats and helps farmers and ranchers hedge...I'm still amazed how accurate he is with his cycles, and he does a good job of keeping his clients out of trouble. Don't say it can't be done...you just need to learn to trade. If you are on the upside of the hill when hedged and the market is starting to turn against your hedge...it's time to lift the hedge...let it run up if you are on the upside of the pattern, then put the hedge back on at the top. Hedges should always happen fast...much faster on the downside than the up. Exit when the market is telling you that it is going up.