Thanks!

Yea, in reading about the Dura Ace, and others, I keep hitting on the shifting just isn't as nice as the SIS compatible. I can't see sinking $60 in something there's a good chance I won't be happy with.

Better to stick with the $20 options...I have a Suntour Winner 5 speed - I should try that for a week or so and see how I like non-SIS shifting.

I found some site that said you could take the SIS cogs and put them on the DuraAce...maybe if I get one cheap enough, I'll upgrade it. Some day.