halfway through my ride yesterday, i got stuck in the big chainring. shifting still moved the FD, just not enough to push the chain down. i worked on it for a while today with some help. messed around with limit screws, cable tension, etc. it's not stuck in the big ring any more, but...
if i adjust it so that it shifts UP ok, if i push the shifter all the way, it sometimes throws the chain off the outside of the big ring.
if i adjust it so that it doesn't drop the chain, it won't shift up at all.
FD is shimano 105 5600 braze-on. shifters are shimano 105 5600 (for double or triple). crankset is fsa gossamer pro compact BB30. bike is relatively new (bought it new in august 2010), so it has less than 1400 miles on it, 400 of which are on the trainer.
thoughts? does this seem like a problem with shifter, derailleur, or cables? or maybe even crankset/chainrings?
i'll post in mechanics' thread also.