I suppose I want to throw out one simple point regarding design, and the efforts of designing, along with the results of design.
Perhaps the reason why I have so much work under my belt to show on this blog is because I am not spending a lot of time redesigning things in the hope that it will provide benefit to my players. Instead I am working on projects that definitely provide benefit ... and having defined the project, I just go ahead and do it, day by day, step by step, testing it as I go, adjusting, until I have something that both the players and I can agree on. A lot of maps. A trade system. A character generation system. Sage abilities. Rewriting the spells. A combat system. A bard. An experience distribution system. Etc.
Perhaps I have that not because I work harder than any of the readers on this blog, but because I am not rewriting rules, but augmenting them. And perhaps it is because when something works, I leave it alone.
I did change the combat system. I changed it to account for movement, the one thing that 1e completely ignored. I stole my movement system pretty much from 3e. But all the other things about 1e worked, so I still use them.
Try it. See what happens.