"In my graduating class from Mt. Ellis, only 3 out of 17 went to college."  


And out of my class of whatever, most went on to college.  Many are in the medical field or teaching, or some other professional capacity.   Both yours and mine are merely anecdotal.  But level of education is really irrelevant.  Having the guidance of the Holy Spirit as one studies Scripture is what is important.


"The term "Present Truth" implies that truth is progressive."


Not necessarily.  Present truth in the time of Noah was that a flood was coming--get ready.  During Exodus it was follow the pillar of cloud/fire.  In the time of Jesus it was that the Messiah had come; accept Him.  These truths are still truth, and help us understand Scripture, but present truth today is the 3 angels' messages; prepare for the coming of Jesus.  None of these negate the old truths, however.  New truth never contradicts old truth; it only expands and enhances it.