The PRL does nothing for your EVDO speeds, only which towers you can connect to when roaming. For those wanting to manually update the PRL look here:
http://forum.ppcgeeks.com/showthread...ight=prl+60750 and here:
http://forum.ppcgeeks.com/showthread...ight=prl+60650
You will need your MSL to do the manual update or you can call Sprint (*2) and have your account flagged for an update.