Vorsa standover accuracy?

I really want the Vorsa (XT, not ST - for my own reasons) but the standover height is listed as 31.5". This is unfortunately a 1.5" higher than I need. I ride a lot of bikes and I find most are pretty accurate with their geometry listings, not always perfect, but makes it really easy to know my sizing for each of the brands (and thus, my subsequent purchasing of).

Anyone with a Vorsa (Lite is what I'm looking at) can confirm this? Or is Ride1Up measuring at a different part of the top tube?