I had a VSSF in 308 and have the VSSF-II in 204,and the only difference functionaly is the stock,, and I LOVE the new version,it seems stiffer and with the 2 ounce Jewel the sweel fits my hands better and I get better control.
everything else is just looks,,unless you get the new trigger,mine has the old trigger and NO J-LOCK..