Wow, I really did not realize just how tired I was. My spelling and memory were shot. I lost my cat Grouch in 2003 and Iron Mike in 2004.
Estimating from the "old school" has just about disappeared from the marketplace. The EC's who have old hands on the payroll that still do things manually are better versed on an estimate than any computer program could possibly provide. If you have a real interest in the mechanics of estimating, try to contact some oldtimers whether they are still active or retired. You can learn more from them in one day than spending months with all the books and videos that are on the market.
Again, sorry for the misspelling and lapses of memory.
Rowdy