yes i use crash fixes with the UseOSAllocators=1 and i did Memory blocks log tests in a fiew places (Windhelm docks, Sovngarde, Whiterun as it a lot modded), near whiterun where i lag a lot too ... The only things that seems strange is that the biggest blocks are always Block1 : 144MB / 85 / 85 ... Block2 256MB / 8 / 8 ... No matters the place, the time of test and what im doin' there (even popping a lot of high spells, fightning everyone etc). Yes i have the SKSE Preloader ^^ So, using SSME + Crash Fixes is in a way the same thing as Crash Fixes + memory patch + SKSE Preloader, but in a less personalised way ?