Even at your weight you need to consider front end dive into corners and such as well as a faster rebound . I'm no expert by no means but the suspension feels spongy enough as it is for a 175# person. WP in harmony with KTM set parameters for adjusting the suspension and warn against over stiffening.
I would say, play around with the front or rear first so you can actually feel the changes being made. Go from one extreeme to the other to see what the suspension is doing and this will pretty much give you a guide.