Thats true Rick, but I have never been a big fan of switching males between females and I have never tried putting a male in with two females at a time. If by TH you mean Triple het(Blood, Anery, and Hypo), then yes, the male was a Salmon DH Blood/Type II Anery.
Has putting a male in with two females worked out for you? Or are you talking about switching the male out between the two females? How about this? Does the female produce egg follicles on her own or does the male stimulate her into producing egg follicles by getting on top of the female and spurring her. If you are of the philosophy that the male stimulates the female, then it is possible that being in with two at once, he might not stimulate either enough. At one time, I had been convinced that males stimulate the females but now I am not so sure. In the wild, how much time would they have to hang out for the male to stimulate her? It seems more logical that the female, being ready, would attract him to her, they would do their thing, and then they would be on their way. I have talked to some breeders that have told me that they always plan on like only 25% to 30% of their breedings being successful, which tells me that it is not an exact science. I have known of breeders getting entirely blanked every now and then. I had one female breed for me 4 years in a row, with two different males. I have also had one female(a 2003 het sunglow) that has not bred for me in 2005/2006, 2006/2007, or 2007/2008, also with two different males. So I don't know man, what do you think?