Dave, When I removed the lettering etc. on my
95 H26 last fall I had the same "shadow" problem. I let it sit all winter to equalize as best it could and then applied the "McGuires" 3 step fiberglass restoring system. (I know the name is wrong, I'm just not willing to walk thru the snowstorm currently raging outside to get the can).The results were very good but not totally perfect.I would bet there are many systems such as Island Girl etc. that will work. The key I think is in letting the sun work on the problem as long as possible.RayS/V Speedy