I do have a west coast rail. Don't have an issue at all with glare. The roof contour on mine, because it is not flat, dictated that it had to be further forward to mount level. Luck in this case instead of good planning resulted in that distance being perfect to use the roof like a cap bill. I bought a cheap brand light off amazon. It's showing some signs of corrosion, but not through the paint yet. For what I paid for it, I can put one on every 3 years if that's all I get out of it and still be money ahead from the cheapest marine spot lights or name brand LED's. Might be able to wire brush and paint. The spot\flood aspect of the light is what makes it nice. It shines out further than I expected with the spots in the middle and I've had an LED on my side by side for a while. The flood's fill in toward the sides well. Guessing you get about 120 degrees of light. Let me know if you have any other questions. Congrats on your new sled!