Hello, I purchased my old motor and shell professional from Best Buy at the end of November. Today, I went back to Best Buy to pick up a micro SD card for my K1 and low and behold there sat the new version of the Phantom now in stock. My dilemma is should I return my old version for the new. I've been enjoying it immensely. The batteries and motors do get hot and I hear the new ones do not, but also have less thrust as well. I would think that the motors would last longer, batteries as well. So far I've seen no cracks in the shell but I hear the new motor version is not immune from cracking. So, should I keep what I have been enjoying and is tried and true for hundreds of people or go and return for the new version which may have yet to be discovered issues of its own. Thanks in advance for your replies.