lohsnest said:Okay, well here is the situation:
... My question is this: I have been using my 9spd Campy Chorus shifters for a while now along with a 9spd Chorus 12-23 cassette and this setup is compatible with my 10 spd parts. Since money is an issue right now, I would likely get the Chorus 10 speed shifters first and then the cassette. With some tweaking, will the shifters work with a 9 spd cassette?
Since most of your riding is apparently in the flat LA Basin & because "money is an issue right now" you have to answer the question (for yourself) as to WHY you are making a change from 9-speeds to 10-speeds ...
Is this a cosmetic change? Nothing wrong with that ... you just have to realize that the extra cog probably isn't going to be a "real" benefit.
Now, I haven't tried this, so it may not work ... you MAY be able to get adequate indexing on a 9-speed Campagnolo cassette when using a 10-speed shifter if you attach the rear derailleur cable at the 9 o'clock postion instead of the "normal" 6 o'clock position -- the alternate anchoring will change the indexing. The little "pressure plate" may vary from derailleur to derailleur, so it may be easier to do with some derailleurs than others.
Let us know the results if you try it ... OR, if I get motivated to try it, I'll report back.
FWIW. If you are compelled to making the change, I recommend that you wait until you can pony up for the shifters, cassette & chain at the same time.