First, I would like to say that I LOVE M3!
Second, GothicAngel is right about the hand. I don't think he fiddled or dialed another wrong on his hand because I have experienced the same problem. You can recreate the same effect if you use the dial "ArmsHeavy". I injected M3 with the morph and turned the dial on his body and received the same effect. You will also get another strange effect with his forearms if you use the "Stocky" morph. It creates sunk-in areas on the back of the forearm. Also, this error is not because I turned any other dials funny. Check both yourself and you will see.
As for the Traps, I think they look fine. All in all, I believe M3 is a great model, but there are a few problems that could be fixed with a service patch. :)