Well, I'm having a chuckle at tw's spreader. Looks like a case of belt and suspenders. tw, you should take the petals off that post wad so the shot will scrub, add Bill Murphy's hyper-flubber tygon-tubing sleeve to the post to give em the lateral urge AND shoot it out of a rifled Frenchie. Should yield 45" spread at 5 yds. with a population density greater than that of Tie Siding, WY with say No. 11s. Would we need a sparrow call?
Lenard, low pressure is a descriptor for peak pressure, right? I don't see how peak pressure would correlate with degree of shot deformation whether you're looking for the beautiful turkey pattern or the beautiful woodcock pattern. I always sort of bought into that GD push vs. RD punch thing in terms of all them little BBs making their buddies smile more or less. For tight-beautiful, I think it's got to be Ease on down, ease on down the barrel. I certainly agree with tw's first post this thread.
jack