Uber bosses are tough. I'm fairly well geared and can solo all mp10 bosses without a problem. However, i can't beat uber sk/magda or uber kulle/seige. When seige picks me up, kulle's tornado and rocks can hurt me. Ghom/rakanoth at mp10 was easy though. I might go around beating sk/magda when i get some 200 extra All Resist to survive 3 stacking  butterflies. I have no idea how to solo kulle/seige. 

I carry ubers on request. I can carry 1 noob on mp8 but i can't carry 2 noobs on mp7. I can carry 3 noobs on mp6. I can't carry anyone mp9 but i can solo them. My tag is VanzRainer#6212. I don't have any machines... but I will fight the higher mps. I already have 8 hellfire rings and am paragon 100, so you can trust my experience. 

On the side note, I'm looking for Hardcore players to party with on the US Server.