I also will tweak but I've managed to avoid that with OF because there is no need to tweak the system to get it to display what I want. Tweak in my mind is coding or scripting or other ways to expand the ability of the program beyond what is built in. Perspectives are built in, I do't' consider them expanding the system at all. Perspectives are just different ways of slicing the data to give different views. I use them to hide things I don't want to bother with at the moment.
No announcement yet.
Switch to OmniFocus?