I am fairly new to this forum as I have just started studying for Part I.
I have been looking through all posts for resources and have been to:
as suggested in Bob's emails.
Today i bought the questions from http://www.prepare4success.co.uk
and I think that they look tough.
It is really important to look at questions in many different ways and so by just looking at the free questions you will only see one - easy - side always put.