I was an Eley sponsored shooter and used to shoot Superbs but changed to Fiocchi FBlack in 2013 because the quality control went out the window at Eley. Missing primers, hard primers and low primers; misshapen cartridges wouldn't fit in chambers; 21 cartridges in one box; a box of 25 Olympic Blue in a sealed carton of Superbs; poorly sealed boxes meaning cartridges spilling on the ground as non adhesive tape used. Then of course there's the performance one batch really soft then next as thumpy as hell. Eley Management weren't interested, I used to see Tomas Atienza regularly at shoots and he knew of my concerns.
A shooting ground owner who is also an England and GB team mate recently asked me if I'd tried the Superbs lately, I explained the above to him and he gave me some to try back to back against the FBlacks and Official Trap and I was mightily surprised to find the Superbs are back to being as good as they originally were, soft to shoot and good kills.
I've got rid of my Fiocchi stock and am shooting the Superbs again, and I note they've also introduced a 24gm Superb something that was lacking before. Hopefully I'll be using them for some time to come.