Well, thing is I bought them in October of 07 and already harvested 3 deer with them. They're fairly accurate for my taste (2 inch group at 20yds) but since I've been reading other related threadson here, I've just become curious as to the possibility of tighter groups if I could find that sweet spot. Come to find out (above) that I'm waaay far from it and considering I'm not grouping too terribly, I might just leave well enough alone.