Veo 2 dual algorithms

I am new to SB having only just joined today so my apologies if this question has been answered previously.
I am close to purchasing a computer and after moderate research my favourite is the Veo 2. My questions are based on the dual algorithms:

Am I correct is believing the DSAT algorithm is based on Haldanean and is more liberal than the Z+ algorithms based on Bulhmann?

Is there a repetitive dive profile/s where the Z+ becomes the more liberal algorithm?
I ask because I read a review alluding to the Z+ algorithm being the more liberal on deep repetitive dives.

http://www.divernet.com/Diving_Gear/group_tests/334683/a_sense_of_algorithm.html

"CONCLUSION
Most of these computers give a sufficiently similar result for us to have confidence in them. If you use an Oceanic OC1 with the dual algorithm, be sure to set it for the Pelagic Z+ option unless you are doing only shallow dives."

Not that I plan to go as deep as this test but I was planning to use nitrox on a holiday. The wreck I am doing ranges from 14 to 28 metres. I will be doing 2 dives a day on it for 4 days. The dive shop allows max 60 minute bottom times on each dive with one hour surface interval.

For this scenario, which algorithm is the most liberal?

Thanks
Mary

i know this thread is from 2012, but i just wanted to post saying that was an interesting article from divernet.com.