Ok, I'm kind of new to these upper level range/competition CZ's. I purchased a Shadow2 a couple weeks ago and just got some range time with it last weekend. It's a dream to shoot. I have several strike fire and 1911 guns but the Shadow 2 beats them all. I've never had a gun with a trigger like the S2. I have seen another S2 version advertised, an AccuShadow. What is the difference between these two guns? The specs look the same. thanks-