I dont think you should rely on greyness by itself though, especially if you have an older board…i have one myself and its a little grey around the edges all the time, even after I wax it. As long as it feels relatively smooth to the touch, I think you're good to go…But my advice is when in doubt, WAX IT! better to spend a few extra bucks (or a little extra time) waxing then having a sucky day on the slopes. Plus, nothing bad ever came of over-waxing your board. The same cant be said of under-waxing… 🙂
