My Vintager friends and I use these all the time. Great wads. I generally don't find Polywad type spreader discs very effective, giving donut patterns in many cases, but these DX wads will effectively spread the pattern in mod to full chokes. A word of caution--many of us have found ourselves relying on the spreader to provide a wide pattern, and thus lose the concentration we would have with tighter chokes. It's counterproductive to do that--so don't overuse the spreaders--just use them when it makes sense at shorter ranges. I load these in straight walled Fioccki cases using Ballistic Products provided data. Keith