Guys I have really appreciated looking at the videos and the readings you have posted which has led me to possibly need to update my current blinder setup. I bought my M-10 blinder about 7 years ago. I bought it from the actual company. I have to say that I have never got stopped while I had it on. Now sometimes my M-10 will go off for no reason and I have to turn it off to reset it. I really don't feel so secure about it now because I am reading that with the M27 you can get updates. Anyways I would like your opinion on what I should do. Should I go with a M27 and keep my M10sinstalled and start frresh with M27's? Or can I add more probes to my current setup?