I don't trust trying to switch because I worry about some issue with settlement of funds or issue with that it's otc. My luck, I sell FNMA and money is on hold for 1 to 3 days and the price moves. Then I would get back in with less shares. Glad it worked out well for you and friends.
I'm about 2/3 FMCC , 1/3 FNMA. I'll survive.
I would think that a victory for FMCC allows FNMA to bring suit with an easy win for similar damages.