A couple of weeks ago, when I got my barrel back from Vang Comp, I tested (patterned) eight or nine dfferent 00 Buckshot loads at 20 yards. The loads including the Fiocchi your mentioned as wells as three Hornady TAP loads (maybe it was 2 TAP and one non TAP Hornady), Remington reduced and normal recoil, a couple of Fedral full recoil and maybe a PMC of some type.
First, the Vang Comp (non ported) System really works. The patterns were much smaller than the same group of loads before the Vang Comp work.
Second, there was little different between the 8 or 9 loads. I mean the size of the worst pattern and the size of the best pattern was within .5" total spread of one another.
My dealer sell the Fiocchi in ten round boxes for about the same as other manufacturers five round boxes. I think the Fiocchi is a good load (from my experience) at a great price.