The "sweet spot" is what I call the part of the game where Sarevok has been banished to the undercity, but you don't want to go after him yet. There are no worries(as long as you have done the Marek Poison Quest PROPERLY!) and you can tie up loose ends. Now I'll do Ulgoth's Beard quests and Durlag's Tower, THEN go spank Sarry! I have the pantaloons and will go to SoA and do the "enigma" quest.