the first partner saves you 50% of the costs. The third partner saves you
only an additional 17% of the total costs but blocks (theoretically) 33% of
availability.

Clever, but misleading. It could also be put that the first partner
saves you 50% of the costs and blocks (theoretically) 50% of the
schedule. The third partner saves you 33% of the costs, but only blocks
(theoretically) an additional 17% of the schedule.

Jose
--
The monkey turns the crank and thinks he's making the music.
for Email, make the obvious change in the address.