Back to the original post about fingers. It is about gimmicks. Perception of nose attitude depends largely on how you sit in the seat. Some people are tall and some short. The number of fingers pertaining to an attitude may therefore vary. Some have short arms - others have longer arms and therefore the distance between the outstretched arm from the eyes will vary. Therefore the finger attitudes vary. Please do not treat students as a kindergarten teacher would treat small children.
Another case in point. Using a measured point on the control column shaft as a method of assuring lift off at the right speed or attitude is fraught with gimmicks again. Flying off at 65 knots in a C152 by using control wheel shaft measurement is nonsense. The POH states that on a normal surface you lift off at a set IAS which is 52 knots I believe. For a 10 degree flap take off lift off is 50 knots.
A similar example to the control wheel shaft theory which I was astounded to encounter recently, was an instructors advice to keep the gust lock hole just visible on the shaft and this will give you the correct amount of back pressure on the take off run in order to keep the weight off the nosewheel. Bloody hell - is there no end to this sort of teaching?
One hears so much superfluous and gimmicky advice from flying school instructors. For example: Flaps identified and up. Why does one have to identify the flap lever in a warrior or a C152? Yet another gimmick for the hapless student to ponder.