The Dutch Surf Sports Federation a direct rival to the KNWV (Royal Dutch Watersports Union) when it comes down to multihull sailing and Sport fishing on the sea.
Basically, the KNWV didn't feel that multihulls were real boats or save enough to be sailed and so these were less then enthousiastic about them back in the 70's. So the multihull sailors joined forces with another group of unrepresented sporters and formed the NFB. It is an independent organisation from the main sailing associated national organisation.
Since then the two organisations have increasingly worked together although some strain is still there. By far most Cat clubs are members of NFB and not of KNWV. The balance of power is keeping everybody straight.
This is one example of where "taking the ball and play somewhere else" was hugely succesful. Without it we wouldn't even have had a Dutch catamaran sailing scene of any significance.
Wouter
Wouter Hijink Formula 16 NED 243 (one-off; homebuild) The Netherlands