Well, with my last Quark experience, I did find that of the two "joints" holding the top pcb to the bottom, one of them is socketed and one is soldered. I believe that with the use of a sucker and good soldering station, you could separate the two pcbs to get to the top set of FETs and do something about the sinking.

What rubs me wrong about doing that is that you shouldn't have to do it with a controller that costs almost $300. At this point, I believe that if Castle comes out with that Neu fix, the MM will be all of the controller that most of us will need. I like the power of 4S, escpecially on a track. 3S isn't enough and 5S is too much. I have a feeling that this is why Castle hasn't released the fix. If they fix the MM, the demand for the MMM may go down. To tell the truth, I have so many MMs that if I got the fix, I wouldn't need a MMM for a long time.