Woodcock are kind of my thing these days. I would rather shoot one wild woodcock than a dozen pen raised pheasants or chuckars.
I like open and opener with 28 inch or 26 inch barrels. I typically use a SXS at .003 and .01 with 8's or 9's in a fixed choke barrel. RST now makes 20 gauge spreaders in 7.5, 8, 8.5 and 9 shot so I use them in fixed choked guns that are tighter.
I bought a mixed bag case from them at the NE PA SXS Shoot at Hauseman's yesterday. I've never shot 8.5's before so we'll see this season how they work in some of my tighter choked guns. They were selling at a nice discount for the shoot attendees.