Why would Line 6 create a USB connection protocol on the Spider IV series, requiring the purchase of a separate "redesigned" FBV foot pedal in order to connect to a PC to perform deep editing? My Spider IV 150 is the 3rd Line 6 amp I own, also having a Flextone II Plus and a SpiderJam. My SpiderJam amp allows many user guitar tone presets to be saved without requiring either a separate foot pedal or PC interface. It's almost like the release of the Spider IV series is a step backward for owner ease of use. I would think the simple addition of a USB port adjacent to the CAT5 port would have been more simplistic, with the required chip circuitry installed in the amp.  I love my Spider IV 150 amp, but since I already own several multi-effects pedals, and the prior generation FBV Express pedal, I don't feel the necessity to spend another $100 on a FBV MKII pedal just to get the USB port.