I havent done a bunch of pattern testing, but the little I have done, the extended tubes seem to throw a more consistent pattern than a flush tube of the same constriction. I think it may be that the more gradual taper causes less shot distortion. Thats all I can figure.
Modified is what I use 90% in a single barrel and in an O/U, I prefer LM/M for 90%. Talking feathers here, not clay.
