Does anybody know a good lubricant for the control stick of an official Dreamcast controller? I am looking for something that will provide good protection while allowing the stick to glide smoothly and quickly snap back to its neutral position. I have tried silicone grease which I have successfully used for my N64 and GameCube sticks, and got silky smooth operation but a slow and incomplete snap back. I have also experimented with mineral oil and brake caliper grease which resulted in a quick return to neutral but less than smooth action.