Radiator cleaning paranoia

[Coffinhunter]

I have done a search and it seems that the only way to really get the rats nest of materials from the radiators is to remove the bumper. That is just something that I am not comfortable doing on my own. I am sure it is easy, but I just KNOW that I would permanently screw something up. :chicken:

Is there another way of cleaning that area?

How concerned should I be? I am not having any temperature issues.

Any advice, comments are greatly appreciated.