I decided to upgrade my phantom advanced to a professional and I received it today in the mail from Amazon. I was disappointed to see I got the W323A with a GL300B transmitter. But really, why do I feel so disappointed about this? For some reason I am considering contacting amazon to return this in exchange for the latest model, but are there any real differences that would justify such an exchange? I really just want to make sure I have the best thing for the money. Sorry to bother everyone with another comparison between the two. My P3A was a 322B with a GL300C transmitter and it was a gem. I just hope that my experiences with the new W323A Pro will be the same!