Just by observing in matches I've played, the SD ball seems to get 10 yds or so, more often 12-13 yds longer than same driver without. This isn't anything I've studied closely but I will outdistance most players, pro and master, that aren't using the same ball.
The Taylor irons seem to react favorably too, to the tune of 3-4 yds, or so. I'm sure somebody's got more accurate data but the ball definitely does add something good.
Having already whacked the older balls 343 yds I can definitely see someone getting to BPB6 and smoking it 375, with roll and wind.
YJ
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