They should work no problem. Have them de-oiled and resurfaced, and you should be good to go. I regularly use a Storm Sync, a Hell Raiser Revenge, and a Storm 2Fast with excellent results on a THS (synthetics), all older balls. The HRR is a favorite of mine, pin in ring with a P3 hole at 500-4000. Hell, I even roll out my old Hammer Diesel Particle every now and then, and it still gets the job done.