Generally, a straight answer would be preferable but since this requires several answers I would refer you to page 62 of BJA III for a complete chart of the Ill18/Fab4 in order by their importance and with all supporting details.
As for the cover issues, I suggest "it depends" becomes the right answer. If I have TC 6 with Q,Q versus 6 and, as expected, a big bet out, and it is the last hand in a shoe and I am leaving upon the shoe completion and their is no pit person hawking the play then I likely will split to get the EV. This partially depends on the environment I have played in so far, little heat, split and go, lot's of heat then do not split for risk averse reasons (I don't mean bankroll) to protect longevity of store.
Bookmarks