I didn't file anything yet. I am going to have my pin milled .020" so the halves can close tighter. Only because I bought a drive face that added a 1mm lip where the pin contacts it causing the halves to be held apart slightly. I noticed that the dr2 doesn't have this. The sliders will work anywhere that rollers will. Because of the shape of the sliders they squeeze the variator halves closer together and allow that belt to go a bit higher than with rollers. I don't have a dr2 but for what you are wanting I think that slider combo would work great. Overall weight would be equal to all 11s, but due to the design and weight choices your low and high should be a bit better.
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MXR TrailBender 160R
SYC Perf head P&P,Matched intake and exhaust, A12 cam, Orange CDI & coil, Motorio pulley, 115mm Variator and lightweight drive face,11gm Sliders, UNI, modded muffler + 200 horsepower 
http://www.youtube.com/watch?v=3hx-hEWl10c
I'll take your insults as compliments and blame it on your lack of intelligence.
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