I definitely have to roll with Soya on this Mark. The floridana are very demanding about their voracious appetites too, and my brooksi and Outer Banks are messier than a typical cornsnake would be of comparable size.
I sure wish colubrids had the same sort of metabolism as a Boa constrictor or python, and pooped every 10 to 14 days or so in a much more solid mass.
Man, all I seem to do is clean cages three times as much as I feed..LOL!. I hate the way........
1 meal = 2 to 3 poops! 
Yeah, I would go with the corn Mark, not to mention the kings might tend to get more "snappy" if a meal is skipped far more than a corn would. You don't want the kid's parents having fuel for school board law suites..HAHAA!
~Doug
-----
"a snake in the grass is a GOOD thing" 
my website -serpentinespecialties.webs.com