My Shockwave should arrive Tuesday. I'll be practicing with and keeping loaded 00 for the scientific reason that I already got a bunch on hand. Poking around the Net... most of what I read indicates there won't be a significant difference in velocity or pattern compared to my 18in Win Defender.

A tape measure reveals that my Defender with a pistol grip installed would only be about 2 inches longer than the Shockwave. Can someone remind me again why I bought the Shockwave?