#1 - Thanks for being the first! I prefer the skyline to be more subtle in the background of the logo. The "F" in CrossFit needs to be capitalized. K.K. doesn't need to be part of the name for the logo.
I like the new logo #51. Looks like the wave is kind of an abstract depiction of the the Honshu island of Japan. Not sure about the opaque circle overlay over top. # 46 is spot on with the part of the skyline that I'm looking for.