Hi Mark,



In answer to your question:

"Has your conversion been working in shorter races up there in decent breeze? "



It certainly does NOT work if you try to score the multihulls against the mono-slugs. (See my first post). For example, every Wednesday we (about 40 mono's and 1 to 5 cats) race 6 miles around an elliptical shaped island. In general, the cats finish in about 40 minutes, the mono's a little over an hour. If you do the math, that's over 200 sec/mile faster than the fastest mono, usually a J-80 which rates about 120. That would make the cats -80.

The reason I use my formula is the "cross-over" boats. That is the boats that are sort of racer-cruiser multi's, like the F-27, Stiletto, etc. These boats have somewhat of an "established" PHRF from places like FOMA, yet they also have Portsmouth Numbers (USSA). What my formula does is retain the corrected time relationship per the USSA numbers, while not deviating too far from the FOMA numbers. (A stock F-27 is nearly the same as my FX-One at D-PN 70.4, while the FOMA PHRF is 60 - my formula converts 70.4 to 59 - pretty close to FOMA) It is NOT (have I said this enough - sorry) intended to rate the multi's against the mono's.



Does that make it any clearer?



Steve



P.S. I agree 110% with everything Rob Lyman said. All cat sailors sjould read what he wrote and then take an oath or something to follow it.



P.P.S - Jake & JonR - Having NAMSA look into this is an excellent idea - see, these forums do promote good stuff!



P.P.P.S I look forward to workng with you over the Winter regarding USSA multihull numbers