You know guys, perhaps it's politically not correct but let us put the question to the table. Why do so many other artists continue to have signature models, but Mark doesn't? Look at Eric Johnson. He has an alder body Strat in multiple colors, two fingerboard options. He has a sassafras body Strat with a Dimarzio in the bridge and hand selected pots. He has a thin line model. Let's face it: from a global perspective Eric Johnson is a niche player compared to Mark. What does Eric Johnson do that Mark can't? Or look at Clapton: he has had a signature model since OVER 40 YEARS and no problem. He has a factory model, a custom shop model and a master built model
Not the fans are to blame. Why can't MK cut a deal with Fender just like the other artists? Sorry. I do understand dustyvalentinos reasoning that, being a huge fan, you have the urge to have such a guitar. For many of us, Mark is the world. Personally I have a more pragmatic attitude like Pavel, so in spite of being a nice guitar, my MK Sig is being benchmarked against my masterbuilts and if I see that I don't play her because of inherent limitations of a factory model, she goes on. No matter how much I love Mark. Because Mark does most probably not play an off the shelf factory guitar. He plays an artist prototype which means somebody put chosen wood into a machine, not off the shelf green wood. Somebody gave it better fret work, looked more at the neck angle etc.
I suggest going to the guitar store and checking out Claptons - factory against Team Built against Master Built. Therefore we MK owners probably have a guitar with his sig on it, but it's not the stuff that he plays.