I'm looking into a 2012 AMT and wondering if the standover really as bad as the geo chart says?

M (17") = 31.65
L (19") = 32.32

I currently ride an '05 cannondale prophet (19") and wouldn't want to increase my current standover of 29.5". This seems to be about the "normal" standover for a large frame. The Jamis is almost 3" higher??? I'm just having a hard time believing that and wonder if they measure differently.

Thanks for any insight. I like all the other geo #'s but this is scaring me from even driving to see the bike.