Well, here we are 25 years later, and I'm the one complaining about electronically commutated motors (ECMs) variable-speed blowers, 13 SEER air conditioning units, and R-410A. Life has a way of evolving in circles, and the HVACR business is no exception.
As the training director for a large residential and light commercial HVAC company, I am on the forefront of getting our techs the newest and best information with which to do their jobs. We have difficulty getting the correct information from our manufacturers in a timely manner - and I suspect that is partly because they haven't completely compiled it yet with the new equipment.