-
I'm running a 38/24 Deore double crank on my Trek 520, and I ran into the same problem with the bottle bolt when trying to set up my Tiagra front derailer. I had an Alivio triple front derailer in the low clamp version laying around, and I managed to make it work with my Tiagra STI's. The cage now sits flush with the big ring, and the shifting is pretty good.
I'm not sure if it would work with your shifters, but it could be worth a try - just be a aware of the cage not hitting the chainstay when in the small ring.
edit: Tiagra 4700 STI's, if anyones interrested.
Very nice. What size chainrings are you running, and, does the front derailleur shift ok (with it being quite a way off the outer ring)?