Here is one for the masses, I get an assignment I don't like or want so I take the RIP down to the Laughlin MPF and 7 day opt it, ask if there is anything else I need to do, nope is the answer. I go into the MPF once a month and ask if there is anything I need to do, nope (I sign in every time cause I know I'm getting screwed). Fast forward 3 months and I am TDY on a Class A investigation (T-38 crashes on landing in Houston, they could make a movie outta that one) and I have that damn new government card that acts like a debit card and I call Citibank to make sure my room was covered. I find out I have over $5K on the card for my PCS, to the assignment I thought I 7 day opted. In the meanwhile I had applied for VSP through the vMPF because my future ANG until wanted my there before my ADSC was up. After a lot of back and forth I was told I could remove my VSP app and basically 4 month opt at the time or let my VSP ride and if I get denied, just opt out of the assignment. They agreed that my local MPF screwed me over and were willing to bend over backwards to help me, I got VSP. (Don't take the money......ever).
Turns out you have to 7 day opt on vMPF, nobody knew.