The 13/14 Redington will balance nicely. And as Tyler said, don't worry about it being too big. I have a buddy who fishes a Black 13/14 on both his 9150-4 Sage and his 14' #9 St. Croix. They are good reels and the price is hard to beat. The one disadvantage is they are on the silent side for those of us that like to hear our fish run.
That is why I bought a 11/12 in Gold for my 8150. To my way of thinking, glare induced car accidents means less fishing competition on those prime summer runs. Are you telling me this is a bad thing?