I too used ach helmet pads, and they are comfy. As far as prep work, like they said, get the finest sand paper you can get for the wet sanding. When painting, the warm water trick is a life saver, cause if you bring a can from a cold house outside into the heat, you're asking for all kinds of trouble if you paint right away. Learned that the hard way, and had to wet sand my helmet all over again. Once you finish painting, let it rest, give it a lot of time to dry so that paint cures.