Hey @dataman, thanks for info on `intsets` FYI, `intsets` has a problem compiling the `card|len` method on `0.17.2` but not on `0.18.0`. Also, while `intsets` indeed will take the correct number of set members, it's at least 3x slower than using `sets`, across the board. So for this case, using a `seq` array is the better alternative.
Well, at least I learned some new things today.
