My small-small cross chain still works, the noise is annoying, that's all. And it's only on the smallest cog for me.
You don't want to move the big ring outward, the spacing between rings is critical.
To test: Off the bike, shift to the small-small combination. Slide a dollar bill in between the front derailleur cage and the chain to verify it's not touching. I can see a gap of maybe 1mm, or about the thickness of the chain plate.
Hmm, I just tried pedaling with the rear wheel off the ground. It's really hard to notice the contact then.
But I do see and hear it if I'm off the bike, wheels on the ground, and pedal backward very slowly. I'm crouched down to watch the chain. As the big chainring's lift pins come around, they bump the top chain just slightly. Oh, now I see that shifting to the second smallest cog also barely contacts the pins. But I don't notice this second cog contact when riding.
Last edited by rm -rf; 04-04-16 at 05:01 PM.