I sanded mine smooth 1st. i followed these instructions, sent to me from another member (Dave a.k.a. yaknow).
1. Wash everything throughly with Simple Green and then with Dawn Dish Soap to get all the oils out of the plastic. Rinse the soap off throughly.
2. Sand everything down good, I started with 60 grit on the real grainy stuff and then moved to 120.
3. Prime with plastic adhesion primer 1-2 coats.
4. Prime with filler primer 3-4 coats. If graining is still apparent sand down with 200 and add another coat or two of filler primer. This step is the most critical as any imperfections here will show up in the end product.
5. Wet sand with 400 the 600. Be careful if you sand through the primer you will have to reprime.
6. Prime with sealer primer 1-2 coats.
7. Wet sand 800 grit.
8.Tack cloth and spray your base coat, sand with 1000, base, 1200, base, 1500. Tack cloth between coats.
9. Final coat of Base then Clear. I put down 1 wet coat of clear and 2 additional coats of clear.
10. Let it dry for at least two to three days, then use a light polishing compound and buff out by hand. Finish with a glaze.
If your somewhat of a perfectionist this little project will take the better part of a couple of hours per day for a couple of weeks. The sanding becomes easier each step of the way so don't get to discouraged if the first sanding takes you a couple of hours or more.
11. Install with out scratching.
12. Enjoy, post pics on the forum, and show your friends.
If you have any questions feel free to pm me.
Dave
(yaknow)