About M11 problem I feel the same that you but i wrote a letter to Airtonics and this is what they answer me:
They are not the same. Airtronics is only distributed in the U.S. South America, and Canada. Sanwa is distributed in other countries. I've already said this.... Sanwa can not have adjustable ALB due to a patent from another manufacturer. You can send your radio here to the U.S. to have it converted to Airtronics if you like. It will cost you shipping both ways plus conversion.
It was a surprise for me,that is it should be a way to change it.Thatīs all I know.
About M8 problem I have a solution but I decline all responsibility about this method,ok?
This is the method:
1-With radio turned off, keep pressing "inc/+","dec/-" and ">" buttons and turn on the radio.You are now in the service menu.
2-Select the word "COM" with directionals keys and pressing "*" key on it.Itīs very important no to choose another one option.
3-Now you have "ALB OFF" in your screen and you have to change the status to "ON" pressing the "inc/+" key.
4-In that moment you have to turn off the radio and turn on again and now you have ALB system in your M8.I donīt know if that method works on all M8 radio types.
I hope to help you all.
Excuse me for my bad english guys