What Don has said in regard to the midgets over the years is/has become largely true. I have had my vehement disagreement's over the years with Don (as moderators of this board can vouch for.)
What Don says in regard to many of the points of contention ring true.
The policy of the Rumble In Fort Wayne is to have a larger payout at the back and middle of the field. Not perfect, but it adds up over a full payout each day for two days.
Here is the payout I have had over the last several years. We get 39 to 44 midgets both days.
http://www.rumbleseries.com/entriesftwayne.php