I have 2 M-8's . I LOVE the radio, my only complaint is the 3rd channel system...It SUCKS
There are ZERO adjustments for the thrid channel, No EPA, No Trim, No EXPO, nothing! . If you use the radio for more than one model, (like I do) when you change to a different model the 3rd channel is still in the same position when you had it on the last model. There is no numbering system asscociated with the 3rd channel, like the futaba radio has (they use percentages, and or numbers) It helps tremendously when you are trying to duplicate a prior setting, you just put it on the number that you last had it on. Not on the M8 though.... To its credit, the knob is very linear, small increment movement, which works GREAT for needles... but without the other stuff it is a pain in the ass. If you are looking for a great radio, with a Great 3rd channel system, get the 3PJ from Cleatus. Its a VERY nice radio, and at that price you cant go wrong. It has the Number system that I was talking about so you can easily reference your last hot needle setting, and is fairly easy to setup.
~James
P.S. As far as I know, the M11 did not change anything with the 3rd channel system.... If we just had an insider to tell them what boaters need....
Just to second what Mark said, The M8 is the EASIEST radio to set-up and navigate through that I have ever used or owned....
~James