Jan 30, 2011 #1 Z z_marshall3win Guest i just purchased the 4sevens quark mini aa with the xpg s2, but after looking at the older models i am confused at what makes the S2 better or and upgrade over the previous ones.
i just purchased the 4sevens quark mini aa with the xpg s2, but after looking at the older models i am confused at what makes the S2 better or and upgrade over the previous ones.