thanks for posting Richard...i was getting tired of having this same conversation...that and the myth of not megging a motor in a vacuum...there is a huge difference between megging a motor in a vacuum versus applying line voltage to a motor in a vacuum. i use the PI method (1 minute / 10 minute). a 6 lead compressor can take about an hour so i have to plan for it!
"I got both hands on the wheel
And my big foot on the gas"....Chickenfoot