Ok, so I started from the beginning with fresh cable and housing and checked to make sure the cable is routed properly through the anchor. I worked through installation according to the fd manual and RJ the Bike Guy. I've adjusted the height, angle, barrel adjuster, and limit screws ad nauseam. The limit screws seem to be key, but if the low limit screw is in enough that my chain doesn't rub the guide while on the big ring, then the fd won't swing in far enough for the small ring. So when I'm pushing the paddles (to shift to the big ring) the fd goes much further out than I need to shift, but once I've released the paddles the chain guide is exactly where I want it. Adjusting the high limit screw makes no difference. In fact I removed the high limit screw, then loosened the low limit screw until I got the fd to go to the small ring. Then when I shifted back to the big ring, suddenly the cable on my down tube had more slack. Does this indicate anything? Can you guide me to figure out where this slack came from?