HELP! Chain rubbing on Front Derailler!

i was a former bike mechanic for awhile and the crossover angle was something i learned about. it's harder on the drive train as the angle is more extreme. granted, not life or death, but something i try to keep in mind. also, i mentioned not to go small chainring to the smaller 3 cogs. sorry, i was speaking from my bike, which has a triple, meaning the angle of the chain is super nasty at that combination. if you're using a double, i suspect that its only the smallest or two that you should probably avoid. also, try setting up the right cogs and chainrings with specific # of teeth that are best suited for you. hope that clears things up.

~the turtle