Hanging the feeder will help with the scraping bit and disallow the girls to scrape so much out of the feeder. I too am having trouble with the amount of feed they eat. I listed my problem in a thread over the weekend and got a lot of good advice about fermenting the feed. I just started fermenting yesterday so it should be ready tomorrow. I'm going to use a three bucket rotation and ration the amount of feed I actually ferment but always have dry feed for them to eat whenever. If you want, I'll communicate my experiences so you may profit from my mistakes/success.