At around the time of the post you quoted, I was mostly using the .58sb. When I first acquired the Lupo, I was chasing efficiency. The first plate I got was the .95sb, then the .95oc. I spent more than a few months using those exclusively (I'm a daily shaver). Then curiosity got to me and I acquired the .72sb and then later the .72oc and .58sb. During that time, about a year, I got better and better at shaving and didn't feel I needed as much aggression. That's why I gravitated to the .58.Which Lupo plate were you using?
Funny thing, I gave the 6s its last-hurrah shave late last summer and fell in love with its smoothness. Before I took the GameChanger/Lupo route I was using mostly plate '5' sometimes '6' on the Rockwell. That last-hurrah shave turned into many shaves. And I found I was able to get great, comfortable shaves using plate '3.' I feel like I learned how to shave using the Lupo.
Now, with regard to razors, I chase comfort with just enough efficiency.