yes RTN...it is better to learn at a 2500'strip than a giant airport...and the students who went off the end had only been guessing at landings...but it is not the fault of the AVASI, VASI or otherwise...it is a fundamental problem and one must learn to go to a short field or a big field and the problems with each. someone who learns at a narrow runway might just flare too high and fall from the sky at a wide runway airport.
as to the TOSH dispensers...the only thing I say to you is what Jack Palance said in city slickers...I crap bigger than you.
so much sadness and lack of knowledge, and all from the east side of the pond...