So where did the other 1/3 of the highest test weight varieties land as far as total pounds?  Maybe that other 1/3 is where we should be picking varieties from. 

At todays elevator prices a 50 lb test weight corn would have to out yield a 55 lb or higher variety by 11% to get more money.

I planted one of those high volume low test weight varieties a few years ago, when it quit raining early July it died. Test weight was 49 to 52. Put it in the bin and got buyer to do a test weight average on the contract for a couple bins of corn.  After seeing what it cost them, they said they would never do that again. The low test weight variety was around 20% of the contracted corn and average test weight was over 56. 

I tend to plant higher test weight varieties as when the weather goes bad, I would still like to be able to sell what little I did grow.