MCAS is only needed in situations with a very high angle of attack, that is a very steep climb which should not happen in normal flight situations. For example,

MCAS is only needed in situations with a very high angle of attack, that is a very steep climb which should not happen in normal flight situations. For example, MCAS is completely deactivated, if the flaps are extended. So unless you get into the steep angles, a 737 MAX with MCAS disabled, wouldn't even feel different in flying.