Camp Mather week swap?

I was lucky enough to get a Camp Mather reservation for the July 31 - August 5 week, but our friends reserved for the next week beginning August 6. Is anyone interested in swapping one of those weeks for the other? Our July 31 reservation is for a 3-person cabin, the the August 6 reservation is a four-person cabin.

In past years there used to be a way to indicate that you are going with another family, such that reservations would keep the two families together - alas that option was not offered this year.

Anyone?