I jog on the treadmill about 3x's a week for 30 minutes at a pace between 3-8 mph. I use my Airwalk or DC skateboarding shoes for this type of cardio. However, I see alot of other people using jogging/running specific shoes. Should I pick up a pair of jogging shoes for use on the treadmill? I don't have any kind of joint pain when using my skate shoes. Just want to be sure, though.