One of the biggest differences between the KTM and KDX is that the KTM is narrower across the seat than the KDX. At 5'3", I didn't feel comfortable on the stock KDX, so I had mine lowered 1.5". When I got the KTM, I rode it for a year on the stock suspension. The narrower, firmer seat on the KTM makes it easier to move around and get a leg down. Over last winter, I decided it was time to re-valve the bike for my weight, and as long as I was at it, had the suspension shortened 1" overall. Big difference in ease of starting, and getting a foot down. No noticeable difference for clearing logs, etc. So, my advice would be to buy it, ride it, and then see if you need it adjusted. I'm guessing it will be pretty close already, if the stock KDX isn't a problem. :)