No. We're full up International F18 rules with the exception of a couple very minor things (like the onboard compass requirement). There was a request from one sailor through their F18 administration in the U.K. to do away with the light and heavy jib/spinnaker combination but it was not very well received there or elsewhere. We continue to use the combinations here in the US (and one of the top 5 NA teams was using the smaller jib & spinnaker sails for lighter crew weight - don't recall who). All sail size/shape, crew weight, crew weight compensations, and platform requirements are consistant globally within F18.