See I was confused. So, I'm sending one package of 38 with $6.00 and getting one package of 38 back. When I send my fast group finished, I send 1 package of 19 and $6.00. Then I send one package of 19 and $6.00 for the slow group finished. That's where my $12 brain was going.
Yep, gonna screw this one up.