The V3 is the 3" version of the VersaMax (runs low recoil up through 3.5" Mag). The ARGO system is very good and what is also used on the Benelli M4. I really like the design and I designed the VM Competition for Remington. I have worked on a few of the V3s now and they do run really well if you have a sample without the QC issues.
All of the issues with the VM are present on the V3. Still don't shoot 2.75" Mags. If it is dirty and gets into a moist environment, it will malfunction for a round or two until the moisture is driven out of the carbon in the pistons. Those pistons BTW, are supposed to be run dry, no lube in the cylinders. The QC issues are that the lifter might need to be tuned and the bore might need to be honed through the forcing cone. Both are pretty simple fixes. I have not seen a warped barrel or a mis-aligned vent rib myself, but there is anecdotal information that these have been seen. If you were going to buy one, I'd buy a 12g chamber bore sighter and check the alignment at 30 yards to be sure before you take it home.
Yes, the samples I have shot all ran the low recoil slugs and buck without a bobble.