It wasn't necessarily an odd flavor. It was just too much caramel to blend well with the hoppiness. I like the caramel flavor that crystal gives. But to me, too much caramel is not for this style.
I've made a pale ale with 2 lbs crystal and it was FAR too much. Toned it down to 1 lb and still felt it a bit much. I've since settled on 1/2 lb and it gives a nice caramel hint without overpowering. Ray Daniels book states something like no more than 5% crystal should be in a pale ale, which is only if you are following the style guidelines. But like I said, to each his own. You might find you like it. Try 1 lb and you can go from there for the next batch. It will be a drinkable brew regardless haha.