So technically you want a gravity reduction feeder?
I will say this from some experimentation and research I've done in the past. You can't keep those 30 gallon feeders full when they are using them.
That’s my biggest worry. I may just leave these broadcasts. I have two trough feeders that will hold a total of 425 lbs. when they really start hitting them they can clean one out in 10 days and we have low density numbers.