After my post from day or two ago, I referenced a verse (I Thess 4:13-18  "...the dead in Christ shall rise first.  Then we which are alive and remain shall be caught up together ...) as though it applied to a pre-trib rapture event, and upon further reflection, I do not think that was valid.  Instead, I believe it references the main harvest rapture that takes place sometime during the tribulation.
 
My reason for this is the phrase "alive and remain".  In my initial interpretation, all that would have been needed in the verse is the word "alive", with the word "remain" almost being an unnecessary redundancy, which is the scripture there are none.  So then, the question comes up, "Remain after what?".  That is when I realized that Paul is describing the main harvest rapture.
 
The above was brought to my attention after reading
 
http://www.thefirstfruits.org/opendoor/ch_01.htm
 
on about page six.  This is a good article by the way.
 
Also, I had pointed to Christ's ascension as a possibility.  However, Pentecost also carries weight in my mind due to the presentation of the two loaves baked with leaven.  I have brewed beer in the past and understand that yeast is a fragile organism.  It does not take a lot of heat to kill it.  I wonder, in bread making, that most/all of the yeast is killed off by the oven heat.  So the offering is presented without leaven, as God is worthy of, though it had been baked containing leaven initially.
 
We are not talking about a seven-times hotter furnace like what Shadrach, Meshach, and Abenego (sp?) went through when the bindings were burned off.  We are talking about a slow baking process, that is still pretty hot, thus pointing to the many different sufferings believers are going through at this pre-trib season.
 
As I contemplate waiting until next spring, I breath out a heavy sigh.
 
Something to consider praying for:  That next year God would allow Israel's calender to line up with God's Biblical calender where they would not be a month off from one another.