@Green lady - I think it is such a personal decision as to when to call it quits. That said you've still got a number of embies right now, so lets hope your bubba is in there and this discussion is redundant.
We only PGDed the last cycle - but it would appear it took 60 eggs to get a normal for us... You went higher FSH this cycle? I think @BlondeinBrisvegas went lower for her DD cycle - the great quantity/quality debate? I felt very down during #2, then #3 was better and by then I had booked to see Wazza. When we did cycle with Wazza we realised that we had had no hope with FS#1 (who apparently is the doctor's choice - maybe for obstetrics...?) and we now only count Wazza cycles. With Wazza we got better results for our first cycle with him than we had before and then better again with this last one. Some people get in very quickly with Wazza's cancellation list. That said, I know you really like your FS, so there might be no advantage in swapping and only you and DH know what is right for you guys.
for some great results this time with PGD.