numerous links starting to appear but fwiw I do not normally start threads. Might have three thread beginnings to my credit ... I’ll wait for someone to start one (a thread) then bookmark while backtracking.
interesting tid bits in this article ... http://www.670kboi.com/common/more.php?m=58&ts=1417179902&article=979C613076F211E4B51EFEFDADE6840A&mode=2