I would say that my 4-way test indicated that there were small incremental improvements in the lower cost Aguila when sorted by rim thickness, by weight, and a second sort within rim thickness by weight. But I felt that the investment in time more than offset the value of the minimal gains, so I said "[bleep] it!" an decided that I'd just buy higher grade ammo, Eley and RWS, when I wanted to shoot good groups and inexpensive ammo when I just want to plink.
I did recently buy a Neil Waltz resizing die, but I haven't gotten around to using it yet.
