O.K., I think I have come up with something that I can live with for a while. Someone correct me (I am sure you will) if I mis-calculated the "numbers".

My P19 MX is rated at 64.0. If I remove my "big jib" (code UL) large jib sailing uni (1.076 adjustment); take the hit for flying a spinnaker (code SP) (.960 adjustment); take my under weight penalty (code L3) ( .974 adjustment)....
64.0 X 1.076 X .960 X .974 = 64.39

The Prindle sails quite well under main alone and I get to fly the spinnaker (while taking the under weight hit) at a better number than I had sailing the MX rig with min. crew weight. Now, before I buy a spinnaker and snuffer system from Robbie, can anyone find a flaw in my madness?

As always, I value all input.

Thanks,
Dave