Ha! I've recently been looking into this for a trip to the Caribbean and have come to the same conclusion: the 115 inch / 292 cm linear restriction is now almost universal(*) making it technically impossible to check in any windsurfing board currently on the market -- so not just your 95cm iQ board. So, despite the fact that most airlines still have an explicit policy for windsurfing gear, in practice you cannot fit into it



Of course, people will say (and I have also personally done so): "Ah, but you can charm/chat/bs/... your way through," etc. Sure, of course, you can (and I have done so too), but this is generally not because of your power of persuasion (sorry to break it to you) but because check-in personnel rarely know the details of their own airline's baggage policies (beyond the basic weight limits). In fact, most have never seen or heard about windsurfing. However, and this is also personal experience, sometimes you do encounter someone who knows the rules, and then you're in potentially deep trouble as it is then no longer a question of how much more you're willing to pay. The airline will simply refuse to check in your gear, leaving you potentially stranded and at risk of missing your flight.
So all this to say: I'd also be interested to hear people's experiences in checking in windsurfing gear in the last 12 months or so. (Last time I did -- about 4 months ago -- I stayed within the 115 inch/292 cm because I was only carrying sails and a foil, no board).
(*) The only airline with decent connections across the continental US and the Caribbean that does not (yet) seem te apply the 115inch / 292cm limit (unless it is a typo on their website) is Jet Blue.