There are a lot of different ways to do the same thing. Basically you have to get it clean. There is definitely an air flow problem. The way to get it cleanest is by pressure washing it. You might have one of those lying around...
What ever you do, you need to get it clean, it is not that hard to take it out of the shroud. Good luck, and call me for moral support if you want.
FWIW, I had to replace a coil on saturday. I ended up taking a coild from an old tuff that I had and put it on an elite. Screwy, but I had a job to do on Friday, andthe rest of the Tuff was toast. Surprisingly, they had basically the same coil.
Scott