I guess we should answer our own question (we are formerly marlbooronwench).
We are in the developing stages of a MFM triad Vee. Asking the question because from what we have seen the FMF version of us seems to be more the usual. A great amount of information is available about what to prevent in that situation, and most of it does transcend to a MFM version, but was wondering if there were more specific concerns for us to watch out for.
Bet ya can't love just one!