Obviously the answer is yes, but will I notice?
From what I can tell, the main difference is Dura Ace 7600 compatibility... which strikes me as silly. who's building dura ace bikes and using tektro breaks? oh well...
I'm just looking for a solid performing but reasonably priced break for my commuter.
PS. If you're still looking for more Tektro minutia, you can delve into the differences between the r200 levers and the rl340.