....you will pass "80 Knots" call passing the 1500' markers.
Pffft. Closer to 1000' on the 767 at domestic weights!
Was always great fun. I've got some go pro footage of me in the 767 and almost without exception, every take off has me with a goofy grin on my face when the thrust kicks in.
But yes, as a gross error check it's a good one.