Great recap. I highly recommend attending the ALPA retirement seminar. All this & more is explained in great detail, with Q&A from attendees. The union does a great job in presenting the information. It is not overly complex, but an incorrect assumption could be very costly mistake, as some decisions are one time only (no revocation), some have a firm decision window, and some require prerequisite decisions, which enable or prohibit follow on options, with no redress possible.