MSPP needs to be fixed. As it stands right now, no one does 1-6, the update to it with increasing HP on the bosses and mobs effectively killed the zone. From what was the place to go to farm Evolved stones is now a dead piece of content.
Either the HP needs to be scaled back, or rewards need to be given that actually reflect the difficulty and time required to clear 1-6. Any group capable of 1-6 needs IA soulshields/upgrade materials available to them.
The rats who spawn still give outdated soulshields if you find and kill one, They should be