Ahh, cool - I stand correctedThe shifters are the 4600 series ones, which is when they went to 10-speed, I guess, and 4700 is when they went to the concealed shifter cables. The 4700 ones are certainly nicer looking, but I already had the 4600 ones in the parts drawer...
Might be worth keeping an eye out for a used set of 4700s..? The price of bits seems to be reasonable suppressed currently..