I am having a world of trouble trying to get my FD aligned properly and shifting properly from small to large cog and back again, especially when riding up hills.
When on the flat, they change fine, but when I apply force on the pedals at a sprint or when going up hills, the chain won't shift from large cog to small. Obviously I am in a pain trying to pedal up a hill on a 52T cog! Yet on the bike stand everything looks and performs fine.
Could it be that by the force of my effort to pedal harder, I am actually "bending the bike" to the right (crank cogs on the right) slightly, which in-turn increases the gap between the chain and the outside FD cage from touching the chain to force it off the big cog? It's the only explanation I can come up with. Or maybe my cranks are bent? Or my FD is bent?
Looking from above, there is a slight gap increase to the rear of the FD as compared with the front closer to the center of the crank. But very, very slight.