I talked to the STI rep this weekend at the Double Tap Championship in Wichita Falls. I got to hold the STI DVC Steel, and a few of their limited guns. They didnt have the DVC open there, but i asked him a few questions about the two. First off, the DVC steel feels great in the hand, well balanced, smooth slide, all the normal features of a stock STI. It will run off the shelf 9mm and also comes in 38SC. The downfall to the pistol.... IT WONT SHOOT MAJOR. Those were the words of the STI rep himself. The DVC open can shoot stock 9mm with a simple spring change. So, if you're looking to shoot both major in USPSA and stock ammo in Steel Challenge I would definitely go with the DVC open and pick up a few extra springs.