Onhyway, this is an area where diminishing returns is thrown out the window. One can get 90% for 1K, 95% for 3K, but that last 5% can cost you 100K.
If you have been stuck at 98.3% for 10 years, a change that gets you to 99.2% is for that person a substantial improvement, perhaps transformational.
If you have been stuck at 98.3% for 10 years, a change that gets you to 99.2% is for that person a substantial improvement, perhaps transformational.

