Over the years I observed pilots ignoring / not noticing / even not believing, very accurate 'raw data', favouring 'more comfortably feeling', but (due falsely corrected or not corrected drift, shift etc.) very inaccurate, sophisticated (situational enhancing, moving map type, etc.) data.
When I questioned this, the answer was: "Too much work and NOWADAYS errors are USUALLY negligible..."
'Attitude' / Airmanship ?
Never give up on your 'basics', no matter what you fly!