> Is testing all these combinations really necessary?
I don't know :-) I just wanted to point out that feature combinations have to be considered. > [...] My intuition says very few of these combinations actually > matter. Yes, I agree. > I wrote some pseudocode for a different approach that I believe > accomplishes the same thing, while being more efficient and hopefully > removing the need to constrain the set of features considered: [...] Sounds good. Unfortunately, I'm a bit short of time right now; I'll think about your algorithm within the next few days. However, please proceed anyway! > I attached some pictures of the tilde unflattening approaches. Thanks. Do you have meanwhile found an explanation why o-tilde looks so bad for Times New Roman at 16ppem? > I chose sizes that showcase the differences between the approaches, > and also committed my current code if you would like to try it > yourself. Will try if I find some time. Werner