Originally Posted by pdlamb

First, the slight difference between your, ahem, seat and the bike's seat, sitting or standing, isn't unusual for drop bar bikes.

Second, if they can fit you to one bike, a few minutes with a tape measure will let the LBS fit you to a different model. They might need to swap out a stem to get the fore/aft thing straight. Few bike shops, for some reason, are willing to swap a $25 part to sell a $2500 bike. I don't know why. Get familiar with a calculator, if you're in the US, to translate inches to centimeters, then go crazy with the geometry charts on the Specialized web site.

Third, you might check in with the bike fitting forum on this site.