This is not intended to be critical or disrespectful...I will make a prediction: your life is going to become much more complicated when you get familiar with pro quality fret dressing.
Same here on being critical or disrespectful.
Why do you think I mentioned that maybe my standards are lower than most before I went on to mention that maybe as a pro in your field you see things the average clod such as myself will never see, or be bothered by?
I make my living these days hand building an item which is available in huge numbers off the shelf so I'm well acquainted with the rather large difference between what the average user will find acceptable and what I know to be perfection of the craft. When my customers get their hands on my work they rave about the beauty and functionality of it and how it is so much better than anything coming off an assembly line, and justifiably so. When I look ay my work, all I can see are the places where I could have done better. my wife says I should not be so hard on myself, but I always ask her, who will keep me striving for perfection if I stop with the pressure? Certainly not my customers, they would be as pleased with half the effort I put in, and to be perfectly blunt only a handful would even know the difference if I only put in half the effort.
I put every bit of myself into every piece I do because it's not a matter of what I can get by with, it's a matter of knowing I've given my best effort to someone who trusted me to do so, and it's also the satisfaction of seeing that knowing smile on the face of one of those few people who can tell the difference when they fist pick up something I've done.
What I've learned doing this for a living over the last 15 odd years is just because they can't tell it does not mean I don't do it, but I also learned I can't rub their noses in the fact they are largely ignorant when it comes to the really fine points that won't effect them either way in their enjoyment of the things I build for them.
The point of all this rambling comes down to this. The average MIM bass is a better player off the shelf than 99% of the people who will ever own one. A pro level fret/nut dressing won't make a bit of difference in the average owners ability to make the thing sing. For every gifted surgeon there are thousands of butchers. Both professions use the same basic tools but only the gifted surgeon can make full use of all the many details which separate a scalpel from a cleaver.
As for my life becoming more complicated, don't count on it. I'm on the back side of life my friend, and one of the truths of being where I am is reaction time and reflexes decline. You would be surprised at what one can rationalize when they come to the realization they are helpless to turn the tide of time. 30 years ago I would have been up late learning to do a proper fret dress after reading your original post, but since my well worn sense of feel and hearing can't tell the difference any more, it's not something I will lose any sleep over.