After considerable endgame study (i.e. Jeremy Silman's complete endgame course), I am finding that there is a wealth of information about how to win endgames. However, I am noticing that there isn't as much information about knowing/judging when it is time to "trade down" to an endgame.
I'm not at all confused by the most basic principles such as "trade down to an endgame when you are a knight-ahead or better". However, I would love to see an outline (or a link to some kind of equivalent knowledge) addressing more detailed situations such as:
--a.) trading down to an endgame when white has two passed pawns on opposite sides of the board vs. black's poorly guarded pawn on the 7th rank.
--b.) win/lose/draw analysis of bishop only endgames when bishop are of same color, or Knight vs. bishop endgame success? etc, etc.
Does anyone know of a website, book, or resource addressing this niche subject of judging whether or not to trade down to an endgame?