Today I progressed from adv. tuck to straddle in the 360 pulls exercise in my weekly straight arm max strength day.
I now do 5 sets of 3 reps as seen in this video (5th set):
http://www.youtube.com/watch?v=eYf-cZH5mSs
I actually like this lay much better than adv. tuck (althought it's harder) as it is much easier to maintain the same body positioning throughout the whole repetition!