I am mostly a lurker here, but I thought I'd join in this discussion.
Mother started studying in 1983 in FL, stopped for a while after we moved to NYC, then resumed studying (and including me this time) in 1987. Stopped again in 1993 and then resumed in 1994. She was baptized in 1995 and is still in, I was baptized one year later (1996) at the age of 17 and stayed with the group until 2009, leaving shortly after my 30th birthday, but I had pretty much stopped preaching by 2008.
CC