Why is the engine missing on cylinder 5 and why can't I figure out the cause??

What is your question?

2009 Dodge 1500 HEMI 5.7 liter , has mds system, when getting on the gas code pops up that cylinder 5 has misfired, trying to isolate the cause but having trouble, ruled out coil packs, plugs, wires, gas,fire, have checked compression, really down to the cam, broken spring, or MDS SYSTEM malfunction maybe?? I don't know enough about how the MDS goes about reducing cylinder and fire, but by cutting truck off then back on it will run fine(sometimes) with no code until getting back on the throttle with some force then the engine seems to start missing or running rough and the code P0305 is thrown. Quite sure it's not mechanical because it does run fine for awhile but when gouged on, then the misfire and rough running will begin and doesn't go away until cutting engine off then back on(works sometimes). When cold(morning start up) the engine seems to run fine and generally idles fine for morning warm up. It throws the code aND runs rough every time the truck is driven which is daily. Truck is used at my work, I depend on it everyday, any help.would be greatly appreciated, feel free to email with any questions you may have that would help you help me with this problem, the warranty recently run out and I still owe for it, plus I love my Dodge!!!!