I recently built some rollout nest boxes, but I need to make some changes to the design so that the eggs roll into the till more reliably, and so that the hens can't reach in and try to fish them out - often breaking them in the process. Obviously I need to increase the slope and make the till deeper. Just wondering if someone else has already worked these details out? I am using commercial style nest mats BTW. Thanks for any help you can give - once I get it all squared away and proven I will share.