I used them for a while with my Prosport. They grouped very well when there was little or no wind. When there was wind they deflected more than the JSB 7.9's and this seemed to increase disproportionately when getting out past say 40 - 45 yd. They were fairly consistent though if the wind was properly from one side or the other. The thing that really put me off them though, was shooting into the wind; they would become really unpredictable past thirty yards and would make a group as big as a fist at anything 45 yd or above (that's bad even for me :-))
I would like to agree with you but then we'd both be wrong....