I don't have any custom roms just rooted my phone for the roam only feature and I flaShed the rooted update for the HTC evo. I read somewhere that you may need to updAte the radio and pri. Is this true or not needed ?
How did you root? If you did the way where you have to go back to 2.1, then yes. Update the radios. If you used unrEVOked then no you don't. I haven't changed my PRI yet.