ORIGINAL: FSUBIGMAC
edit -- not paralle but perpendicular. BLAH
Try adjusting the other way. Sometimes, things do exactly what we wouldn't expect to do. If it REALLY consistent, at 20-40yds, then you may consider re-adjusting the sights. Sighting the bow to the BH's, and worrying about "perfecting it" in the spring!!! Nothing wrong with a 31" arrow when you have a 30" DL, somebody's just jealous.....
The spine should be fine, the only thing I might recommend would be upping to a 125gr tip, but if you're short on $$$$ like the rest of us, you'd probably be just as well to sight in to the BH's and "roll with it."