I have read BJA2's section on I18 + Fab4 using HI-LO. But I am a little curious as to how those 18 were selected.

1) How much do the table rules affect EV? E.g. H17 vs. S17?

2) Is there an extended lists similar to Don's table in BJA2 pg 62, i.e. average EV gained for each deviation? I think I saw that maybe Casino Verite can generate custom charts?

3) After mastering Sweet 16, Illustrious 18, and/or Catch 20, do experienced AP just keep learning new indexes? Or would it be better to play perfect BS + I18 + Fab4?