For over thirty years I was convinced that the rapture had to be on Rosh Hashannah, prior to the tribulation. It seemed to make perfect sense. But it does fit at the end when He reappears "in Glory". In real time succession just like the spring feasts did with Jesus actually "present" for the fulfillment(s). The fall feasts...Trumpets / Yom Kippur / Tabernacles...All seven feasts have to do with the Jews first, and they will have their final implementations at the King's return.
This again makes Pentecost the "Feast of the Church" if you will, which at that time was both Jew and a few gentiles. We have good reason to expect our departure at this time. I continue to believe we are going any day now. And as Pentecost timing is not "certain" due to unconfirmable parameters it still may be the day we go, and still be a day we think not. The case for late spring/early summer is strong. And the implications of Pentecost marking the change of the past dispensations. Add that to current events and you have back to the edge of your seat anticipation..!!
Shan.