gatt writes:

The action is different in IMC because if you feel a sensory perception,
you have to check the instruments rather than look outside.

No. In IMC, you are ALWAYS checking the instruments, perception or not. You
don't wait for a sensation to motivate you to look at the instruments, nor do
you allow a sensation to take the place of looking at the instruemnts. There
no sensation is; there only instrument is.