Dave right you are.
I was thinking the small was a jib sheeted off the front crossbeam (wrong). Small jib is just a normal jib and large jib is tacked low with a foil or extention.
Anyway it looks like a .5 hit for the MX main which seems like it would be worth it.
So in other words it looks like you had it right the first time.

Mike Hill
H20 #907