I've seen a lot of corp. feeders as well as diy feeders and sorry to say no closer to deciding on how to go about this . What is the most efficient feeder out there to 1. minimize waste and 2. allow for 1 wk. or more time between filling with feed 3. can't cost an arm and two legs either ? My 1st flock plan is to have 7 hens. thanks in advance for responses.