Root Rooting and better radio performance possible?

[Timaphillips]

When you root to a sholes ROM, does anyone know off the top of their head if they made a point to improve the radio performance? I don't ever have any problems with dropped calls or 3G strength, but am just curious. My friend just a block away from my house drops calls on his Droid all the time. His house in a black hole of cell service for some reason.