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The "B" in the "B1" and "B2" grading of the blastocysts suggests they were second grade embryos (i.e. assuming A1 is the best). That is what I was referring to when I brough the point about the sperm's genetic contribution to blastocyst development.
A slower stimulation (10-12 days) is perferable to a shorter stimulation (less than 9 days). Stimulation for more than 12 days can lead to post-mature eggs. A slow stimulation allows for better egg maturation. So, no, a shorter stimulation with a higher dose of medication would not have resulted in more mature eggs - probably the opposite.
With the exception of presenting an overly optimistic picture, I think they handled your case as well as can be expected. I see no need to move to another program if this cycle fails. Every sperm and egg combination is unique, so you may do better on a subsequent cycle.
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