[quote=wlrottge]What Craig said; the USSA PN catamaran ratings have not been updated in 10-12 year depending on who you ask. We have tried to work with USSA, but I'm more convinced than ever that they have no interest in supporting multihull sailors.
Texel and SCHRS both use the same core formula and are therefore closely related. SCHRS also works with RYA to statistically analyze and validate ratings as well as perform an annual internal assessment. You can read the annual review here: https://www.schrs.com/inc/SCHRS_Review_20180129.pdf
None of the systems are perfect and the wind range rating complaint against SCHRS is somewhat valid, however... the goal is to be a simple to use and maintain rating system where boats are rated fairly over a range of conditions. Unlike US PN, SCHRS and Texel are both transparent, so that sailors can go calculate their own rating instead of waiting for a black box to spit out the answer.
The argument is, does the level of effort to develop and utilize wind range specific ratings produce enough benefit to the sailors to warrant the effort? Given that most mixed fleet races I've been in don't use the wind range ratings, I don't think it is. Are there areas that present challenges? Yes. There are a couple of boats here in the US that are difficult to fairly rate, but they are very much the minority.
In the end, do you want to use old ratings where development classes have advanced but the numbers never changed, new boats aren't added and the governing body is unresponsive to the needs of the fleet/community, or something better?[/quote]
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