Ok I have a rooted evo running fresh 188.8.131.52 and so far I love it. I used unrevoked 3.21 to do this. My question is does flashing new radio files and pellet files actually increase and or decrease how well the radio works on the phone. I noticed hat once I installed wireless tether that my WiFi signal seems to go down 1 or 2 bars when the laptop is not even 10 feet away. Is thus normal. Anyway I'm very knew to the whole flashing of radio files and just wanted to hear if it does anything or not.