Very recently, I purchased my first pair of X-Metals (XX). For me it was curiosity about the level of respect and the loyal following that this series commands from the folks on the forum. I wanted to know what that was all about. I'll admit that, if funds allowed, I'd be on the hunt for an R1 & an R2 as well. So, what drew you to the X-Metal line? What continues to fuel your interest (addiction)?