Is anyone else out there having problems with the new North inflation valve? When I first got the kite it inflated quickly and easily using the 2013 Naish pump. Now it is becoming fiddly and diificult to inflate to full pressure. Yes I am aware that it hisses lightly while inflating but it took a good ten minutes to pump up today and it wasn't able to inflate to max pressure.

No mate, we have been using this valve since September between 8 different kites, not a problem except once.

My bros valve was leaking air when pumping. We Opened the valve up, put the small nozzle on the pump and blew air into the valve all fixed.

Maybe try that and or your pump could be fcked maybe?

Sounds too simple but I would try using another pump before doing anything else. Process of elimination.