Hey Benny, do you have Auto-Disconnect installed as well? I'm using polite and have noticed that it will switch to MMS apn, but i also have Auto disconnect running as well, and have noticed when it switches from 3G to 2G it will go to the MMS apn and will be switched from Dual to GSM.

Never quite understood the polite, rude or havoc mode clearly; do you have a better grasp of it?