Interesting discussion, what is "Offshore"? I can relate to both camps... Me, I would like to see the offshore class run on a different shaped course every race weekend with right and left turns, tight turns, long straights and short straights, mix it up and watch the boats develop....
Having two organizations in the UK for such a small sport/hobby as rc boating seems slightly ridiculous, with the number of people involved one umbrella organization must be able to present a better case to authorities and councils when looking for places to run. One only needs to look at the US to see what problems two similar organizations can cause ::)
"O" may be offshore but it relates more to the type of drive and hull than ability to run on the open sea, it describes a racing boat adjusted to its racing conditions. Sure, it is more like circuit racing at the Naviga Worlds with the oval course, so be it. The only way to adjust that is to get Naviga to revert to an M course. The current course for Naviga FSR-O was voted in not too long ago, pushed by the Norwegians I believe, one of the reasons being that their large monos/catamarans had great difficulty on a M course.
Here in Sweden the "O" drivers think that the oval course is boring/not challenging, so nationally they still race their championship on a M course, this does not mean they need a second organization to do it... Due to the fact that boats set up this way are not the always at their best on an oval they run a special race weekend to decide World Championship participation, should one wish to this is the only race needed to get to the Worlds.
Danny, unfortunately for you, NAVIGA is the recognized world body for boating, to change the rules you need to be in the organization, I guess the MPBA is the same. As you have a functioning system maybe you should apply to NAVIGA for accreditation, failing that discussions with MPBA would be good, they surely don't want to turn away a successful group of modellers... A solution similar to the Swedish may be a way forward