Of all the ball comparisons I have seen posted, I would have to say that this is one of the most controversal. From some people's point of view they say "same core, different covers, ehh same ball", others say that the RS-1 will give you more length because its pearl. Now having said that, and not to knock charlest or ragnrk @ all. I own both and they can be their own monsters in there own right. First off the cores in these ball are gonna give you a mean midlane read no matter how you punch them up, its just the nature, now what you have to ask yourself is how drastic of a mid lane read you want. MY RS-1 has more midlane ARC than my RS-X believe it or not, but its punched up that way. However the RS-1 always cleans the heads better when they get a little spotty. the drilling on your RS-1 should give you an even midlane read which is GREAT on sport shots like a 36-38 flat shot. But don't think that if you get an RS-x and it will do the same because it won't, maybe similar but not the same. I'm done rantin, here are pics of my pieces in my profile you can check them out if you want.
BMM
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Roto Grip forever!!!! What else is there??