Paul, I have to say (as far as I've known) welcome to the "industry first" club. I can't find a single account of either Yellow Coris Wrasse, Six Line Wrasse, or Four Line Wrasse ever reported to breed in captivity. Here is a very long list of breedable fish, and only two wrasses are on there: Hogfish and Multicolorfin Wrasse.
http://www.rcthawaii.com/cvb/5.htm