I have just got a little fun comp here for you. I have 4 lifts here. I want you to say what you believe is the double lifts, and what isn't. They are all strike lifts, with no get readys. I have been practicing them and believe that I have improved. I believe that this will help me see whether or not I am mistaken.
I won't post the answer up yet, but will do soon after you guys have posted up your guesses. Do it in this format to make it easy

1st turnover - single
2nd turnover - double
3rd turnover - double
4th turnover - single
e.t.c
e.t.c
and happy guessing

http://media.putfile.com/double_lift_comp
edit: I don't normally sound anything like that...bloody camera lol