I ride an SV also, and can relate. I have rearsets, on the lowest setting with is probably close to stock height and also get knee stiffness. But I'll get a 2nd bike before I get rid of this one (got it too cheap, & first bike nostalgia) I did recently ride a V-Strom 650 for about 2 minutes, has same motor as our SV minus the cams being slightly different. But I was shocked how high those sit, never even realized. And I think they are very sporty for a ADV bike, and Cleary it can hold its own in the twisties no problem, might not be for track days though unless you really wanted it to be I guess. But coming from someone with similar experience and taste, I wouldn't rule out sporty-tourers or some adv bikes, they can change your perception with a quick ride or sitting on. I'm going to be looking in that department for my next bike likely, if not maybe a 675 for me also, they're pretty badass.