Update:
I said I was going to be completely transparent on this test so that's what I'm going to be.. :-))
April 20 I contacted my local Purina rep and ask him to order the feed I needed, 2 bags of MVP for my own pond use and 2 bags of AquaSport 500 for my trial experiment.
On April 29th I contacted Optimal about BG feed for the trial. A discussion was had that questioned the comparison of multi-sized particles and whether that would be apples to apples or not.
11 Days later I received custom sized Optimal BG in perfect round, 3/16" pellets-at my door step.
I have 135 BG that were hand selected and measured at a minimum of 5.25" and a max of 5.5" in a holding pen that I'm currently feeding a mix of 2 brands of pellets, neither optimal or purina. I have a separate pen setup with a divider in which 40 of the closest fish in length and weight will be placed into each side.
The problem I have here is I'm still waiting on the Purina feed exactly 30 days later-not sugar coating any part of this.
Phase 1 is complete in my mind....