Double pays more than Pick 3? Belmont race 9

[Socalman3]

If the will pays are to be believed, if any of the 2,6,7,or 8 win the 9th race, the $1 double into that race will pay more than the $1 Pick 3 into that same race.  I realize that Imperial Hint only paid $2.40 (he was the winner of the first leg of the Pick 3), but it still seems crazy that the overbetting could be so much that it brings the pick three below the double.  Is the take out so different between the two wagers to make the difference?

[boardedup]

Belmont takes about 18.5% on DD’s and substantially more for pick 3/4/6 at 24%.  For some reason the take out is different for pick 5’s, they’re at 15%.  Regardless tough game to beat for sure...