I wanted to publish my experience as well and want your guidance in this regard. A year back in May I appeared for 200-105 after spending a lot of time studying and then searching for dumps from different sources, although according to most people 9tut was the most reliable. The passing score was 811 and I managed 803 and failed.
I have long since followed 9tut and certcollection if not regularly but on weekly basis to find dumps or helpful material. What I have been reading week after week is that the dumps are changing frequently and majority of the exam takers are failing. Those who happen to claim they have authentic dumps charge you a hefty amount and then share some questions that are not even part of the 200-15 curriculum. I have also seen people literally abuse each other on 9tut for stealing cash and not sharing valid stuff. In all these circumstances what to do?
The purpose of this post is that if someone has a valid website where I can find guidance or a forum even on certcollection where people who have recently appeared for the said certification then please share it here.