I am not preaching , I just wanted to point out that a deviation without reasonable grounds , being minor or major, could have a significant impact either on safety ,being the primary concern, or economically.
What definition do you give to minor and major deviations? Would you consider flying below MSA more severe as not breifing your approach ? That is where I disagree.
Not crosschecking the approach plate validty has been more detrimental than flying below MSA, in the past.
Considering the deviation as being minor could be just reassuring or comforting in one's decision , not to qualify it as being a lack of discipline.
Airmanship is that portion of flight which didnt fit into your SOPs , where you exercised good judgement. That's why aircraft are not flown by robots which are unable to sense a situation out of the ordinary.
Not being able to distinguish or integrate the environement around you such as weather , performance etc.. Could be as detrimental as respecting blindly SOPs.
As for the rest, the history has shown the results.