Originally Posted by slappano
I think the SI writer meant he changed racquets (not from a large headed to smaller), but just a change and he described the racquet as a smaller headed type. You can't possible tell by pictures.
I agree completely here. I think he was saying that Federer changed rackets at the beginning of the year and the smaller was just description. Smaller than he had previously or smaller in general? I think he meant the latter.