40 solid minutes of mudcrab skirmishes. It takes a special breed to get a mod pack of this size behaving properly (I include myself solidly in this category). I have had plenty of CTDs, but each one brought something to my attention that I wasn't doing quite right, either with load orders or patch updates. Most recently, however, I had an infinite load screen when attempting to use a carriage to travel from Windhelm to Whiterun, and AFAIK I've got everything set right. It was still at the very beginning of the game, so there may have been a bunch of scripts cued. In answer to your question about an acceptable level of stability, I'd say there are two answers: one for my tolerance level, and another for what I believe is inherently OK for the game. In answer to the first, I'm probably not going to be too annoyed with a CTD every 3 hours or so. As for the second, it really depends how new the savegame is. From what I understand, the longer you play a character, the more crap builds up behind the scenes, and that's just an inescapable weakness of the engine/scripting language. So in light of that, I'd like a new game to run with very little script lag and almost no CTDs. Over the long term, I'm probably going to look through this mod list and see if I can identify any script-heavy ones I won't miss too much.