I'm glad to find topic! SCHRS site is down, contact e-mail isn't valid. I had one question, copy from mail:
---
Dear Sirs,

Since 2002 we use SCHRS handicap system for inflatable catamaran race at Verhnevolzskaja Regata (Russia, Volga river near Konakovo city) and also for some another catamaran racing in Russia and Ukraine. In Sept 2003 we create catamaran owners association - ICMF (International Coastal Multihulls Fleet).
I shohuld note, we use system not exactly as described in SCHRS rules, but with some simplyfications.
Big part of our "fleet" are home-made. We have also some types of productional boats, but often owners have rebuild their catamarans by their own wishes.
We should re-measure a lot of boats and use simplyfied sail measurements and WL (not at water). Of coarse, as handicap system himself as measurements are subjects of constant disputes.
Now we have one new question.
After ERS 2005-8 (Equipment Rules) was published, we explore one contadicrion with SCHRS measurements.
Accordingly ERS G.7 foot/leech/luff/ length should be measured as distance between corner points (Clew/Head/Tack).
That is, as the direct line! Pictures in G.7 section dont leave doubts.
On the other hand, accordingly SCHRS measurements (picture on Yours site) for spinnakers and common sense edge length should be measured at real edge curve line.
The question is important mostly for spinnakers, since the Zero Code gennakers are popular and the decision is a sail spinnaker or "genoa" (75%) depends from foot length.

Best Regards,
Grigory Shmerling
the ICMF secretary
Moscow
parusa@narod.ru
http://parusa.narod.ru