all 2015s are the low version.
i rode a hypermotard for a bit over the weekend. I'd say suspension is about an inch higher, and the seat another half inch or so.
we were on VERY twisty roads (tail of the dragon/cherohala/etc) and my '15 strada on the scorpion trails kept up fine, but I did drag my shifter once or twice...I adjusted it higher and that problem went away.
get whatever fits you best.