Hello Centaurus,
Slightly off topic, just think this may help a little bit. The new (not so new) block speed does not apply for flap retraction except when the FMC is not working. The 'f' speed is the maneuvering speed for the weight (if you have entered the weight correctly) and by definition (where we fly over here) it gives you the ability to bank 25 degrees with 15 degrees protection. I do not know how they programmed the first simulator but I agree with you, 168 knots 'f' speed for flaps 1 is, I think too low.
BTW, maybe if you have a look at the top of the yellow bar, it will give you further indication as to what they have programmed.
Cheers