@ Dozy
You are right, "everyone knows .." does not cut it. I should have gone the more scientific way, as FGD135 does perfectly.
Read his contribution very carefully and you might grasp what we meant.
A part from these data, let me state that i have flown 6 airliners of three manufacturers, 3 with round instruments and 3 with tapes. I can only sustain the above mentioned quotes and data.
What airliner with what dials have you flown??
I don't want to belittle your knowledge, but please acknowledge that the pros out there might have some more experience before you call them intellectually dishonest when they put their opinion up front. Especially when backed up by scientific data.