What is a CG gartley (Chameleon Gartley)? well it is a gartley modified for a symmetrical ab=cd completion point. In this scenario is an A to B retracment of 0.707, the reciprocal of .707 is 1.141. A completion at 1.141 will give a equal ab=cd pattern also giving a better RR than traditional Gartley.
I take no credit for this pattern I learned it from Thomas Brandon.