if you can get a wire there you should. Under boards etc. Wireless maybe a more viable alternative than it was. But think like this if you had to make a very important call would you use your mobile or your landline?
i know you like gr, but i think a decent period to pass is better than auto gr. We have all seen guys been doing it for years that really shouldnt be
gr would suit me as i wouldnt have to do anything but that just means it changes nothing. If i dont hit the grade i shouldnt be doing it.