I bought a couple of Van's nylon stick grips but they needed quite a bit of sanding along the mold joint lines and general reshaping for best fit. Now I'm having trouble getting back to any sort of smooth surface in the sanded areas. I've tried 800 grit sandpaper, rubbing compound, scotch brite, etc but the 'hairy' look is still there, especially noticeable next to the un-sanded areas. I've heard of flame treating, but I'm reluctant to do this. Does anyone know of any good techniques to smooth nylon? Would painting make sense if all else fails?