Folks,
I added an F1-X to my rig that I bought off Ebay while I was in Iraq. All I can say is it's amazing! Very simple to use, but yet, the tone is so warm, yet crisp. I also use an SF-2, so the ability shape tone is limitless. I was using an SVT IV Pro (a great amp as well), but this is at another level. If you don't have an F1-X, you owe it to yourself to try one. Believe me, it's all that.
Alan