Right now i am riding a 42-14. Its fine for riding the flats but I do have some difficulties, for example on the hill in Prospect Park. I can get up the hill but it does wipe me out. It maybe because i am weak but I was considereing changing it to a 15 or even a 16. Would i feel that much of a difference going from a 14 to a 15. Or should i just suck it up and stick with the 14.

I am waiting for my new wheels from nashbar so i want to get everyones opinion on gear selection.