[Stumpy]

Thayer, if the team would pay A nothing for a horse not in makeup, then A should pay B and C to take this horse, not vice versa.

Assuming a normal stake with a guy not in make-up, 50/50 split, if horse wins 9k in a tournament, you guys would get 1.5k each.

If A gets his 9k back first, then B and C would get $0.
So if A paid you guys each 1.5k, you'd be even.
This assumes the horse always gets out of makeup.

If he gets out of make-up 75% of the time, then A should pay B and C 1.5k * (0.75) = $1,125.
A then gets the first 9k in wins back.

A obviously has the choice to either take this deal or keep staking the guy on his own.