Lonestars new nerfs are nice idk if they make a set for the ds or not yet. but as for the ac's if you get the new ones with steel pegs ur good to go i had the aluminum pegs and they where dull and slick after about 5 rides.
we have ran every kind of nerfs and the only one's that hold up to intense racing are Raths, or DG. I would not put anything else on our quads. We have been racing the SSQSA series in FL. It's a great series, tons of competition.