I am a newr rider, when I was freeride mountain biking I was a dress for the crash, not the ride type of guy. that being said, if I am doing mostly off road riding, with the occassional track practice, what type of knee protection do I need? Are knee braces mostly for MX racing, with the more aggressive cornering techniques, or are they worth the extra dough in the woods? What brands do you recommend? thanks!