Originally Posted by jcneve

I've looked into this a little bit and perhaps someone with more expertise will provide better fidelity...but I think as long as you and your wife always fly together, there doesn't seem to be any benefit to both of you having Mosaic. My wife and I don't always fly together, so our strategy was for both of us to get to Tier 1 then we are focusing on just one account to get as many perks as we can. If you end up getting to Tier 4 (which is a lot) on an account, you can actually gift Mosaic 1 status to someone