Yeah I'd go to the end of the red. Most wings should have some margin of error built in. The reedin wings I ride last fine at 9-10 PSI even though they're rated for 8. They start to blow up at 11. My guess would be slightly over pumping the wing will make it ride better but decrease the lifespan a little.

Just be careful if you're loading the wing hard in windy, gusty conditions. The times I have blown wings have been racing or loading for jumps in 25-30 gusty wind while over pumped.

DavidJohn said..
You could buy a Naish pump..

Can you just buy the gauges separately? They just screw in and out and seem pretty standard in their size and thread. I have the same issue with my Duotone pump. The gauge is perfect for Echo's and the original Slicks, but the newer SLS Slicks require a higher psi, (particularly the smaller sizes)

My local, Briskites, had spare Naish gauges so worthwhile asked at your local Naish dealer.