Ah yes, thank you for that, on the Skymills page the optional files descriptions haven't been updated, and say they're not included in the main mod. I have tidied that up. Disabled both Brawl Bugs, however Immersive Patrols main file unpacks all of those esp's so they're needed. I use SUM and the only mods I have to rearrange are Hideouts of Skyrim, Grass on Steroids and Skymills. The game appears to be much more stable, however still crashes within 10 - 20 minutes of gameplay. The only pattern I can discern from the mostly random crashes is when Fire spells are cast. Sometimes I can clear all of Riverwood's NPC's with Fire spells and walk out of there without a game hitch, other times it freezes as soon as I cast a fire spell. I tried disabling ACE Magic Plugin, however that had no effect. I'm leaning on the fact that the game engine simply can't take on the Load Order I want. Any idea's?