The problem with today's flats screen digital displays is that many pilots coming from older generation helicopters have a huge problem with re-programming the brain to look, recognise, calculate and respond because with peripheral vision the brain relies on the needle position on a dial. No dial, no needle, just a number and your scanning process has to be modified as well as reprogramming your brain to deal with numbers.
Yes, I would often trim the cyclic the wrong way when trying to adjust the airspeed by a few knots when on instruments.
