Hi Boris
I've been consistently using these settings for last few versions now and they seem the most stable and have best performance for me:
ExpandSystemMemoryX64=true
ReduceSystemMemoryUsage=true
DisableDriverMemoryManager=true
DisablePreloadToVRAM=false
ReservedMemorySizeMb=360
EnableUnsafeMemoryHacks=false
Was getting more crashes when using higher values (over 512mb) of ReservedMemorySizeMb, 360mb is working well for me with 0.201 so no need for higher setting than 512. The enboost solution in conjunction with the memory management tweaks give me a really stable and high performing Skyrim - even with crazy amounts of mods and textures. I couldn't run my current Skyrim setup without your mod.
Incidentally VRAM management is defiantly better in last version:

This Whiterun test goes in out of buildings about 20 times with no crash as VRAM is periodically reduced (not by me), previous versions just built on VRAM as you entered/exited each building until eventual crash after vram maxed
Not sure what else you can do with the memory other than minor teaks/optimizations? Think you've done a fantastic job for the Skyrim community - thank you
i7 3770k @4.1hz, 8gb Corsair RAM, 3GB EVGA GTX 780 SC+ACX Cooler, OCZ Agility 240gb SSD, Windows 7 64-bit