If you find you're guads are now massive and you can hear the lamentations of those who are tryin to hold your wheel, but just can;t seem to make the 'dingleberries' hurt enough - swap the outside 50 ring for a 52 or 53 (54 is easily had and some searching might find a 56) and scooch the FD up 2 mm on the seattube, have one link added to the chain.
upgrade .... done... go cwush your enemies...