1) No, they harvest depending on how many hearts they have, i.e. a monster with no hearts harvests little, while one with ten hearts can do the whole field. Mine is at three, and that's enough for my needs (he goes through roughly nine 3x3 squares).
2) No. If you have the proper book, you can be 20 levels lower in skill than the item requires, and still make that item successfully (albeit with only a small margin for error). If you don't have the book, but try to make the item anyways (i.e. picking the right materials and trying to see what comes out) you HAVE to be at least at that skill level.
3) For runeys, it IS complicated, but I think I wrote something about it in the official thread. Give me a few minutes please.







