I formally requested Lake Michigan PHRF to reply regarding a change in rating if I sailed my J-30 OD with a kevlar (non-class material), tri-radial mainsail. The official reply was that PHRF does not rate sail material. I am currently racing with a four year old dacron main and a PHRF J-30 OD certificate at 138. If I raced PHRF with a laminated mainsail, what would my PHRF rating be, since the PHRF committee does not rate sail material? I have seen J-30's racing in one design regattas such as the NOOD with laminated mainsails and no apparent penalty (no apparent advantage either!). I tend to agree with the numerous comments that there is little (if any) advantage to laminates for mains in boats this size, so why continue the ban in the class rules?
