OK. So before I tear apart 2 decent shockwaves to make one good one, does anyone have advice or words of warning before I begin. My primary mission is to take the head from the more beatup shockwave and replace it with the one which has a perfect C9 body but a crazy glued head. My current worry is the springs near the arms. Once I open the back screws will they come flying out and make it difficult to reassemble? Is there an easy way to swap the heads without too much disassembly? What are my worries here? The separation of the legs are really stiff. Any lubricant recommendations? Or just leave it. Any tricks of the trades for repairing the loose non standing legs? Clear nail polish work well? Used this with other bots to fix this problem. Thanks for your wisdom.