Tireguy, I agree that ICs make a bigger difference. Obviously when you have a top of the line $2000+ list price powercord, there's not too much room for improvement. But depending on one's idea of what a good powercord generally goes for, the difference between a $100 PC and a $600 PC or a $350PC and a $2000+ PC is going to be a lot greater than what the Pathfinders offer over the Symphonies (not to mention going from stock powercord to two $2000 one). This isn't because the Pathfinders aren't that good but because the Symphonies are that good (again this is my assumption).
If you have the Symphonies and you don't have your gear, room, any power tweaks (including dedicated lines) or at least the Symphony speaker cables in place, I just don't think upgrading the ICs to Pathfinders will be the most efficient upgrade. It's a case of improving your weakest link vs improving a strength and identifying the point where diminishing returns really kicks in. It is tempting to upgrade ICs though since they're so easy to switch out.
If you have the Symphonies and you don't have your gear, room, any power tweaks (including dedicated lines) or at least the Symphony speaker cables in place, I just don't think upgrading the ICs to Pathfinders will be the most efficient upgrade. It's a case of improving your weakest link vs improving a strength and identifying the point where diminishing returns really kicks in. It is tempting to upgrade ICs though since they're so easy to switch out.