Another option maybe investigating the use of North Road handlebars with your existing stem. If you take a look here http://www.ecovelo.info/2009/11/23/n...tto-albatross/ you will see that North Road-style bar sweep backwards towards the rider permitting an upright riding position.

You can even flip them upside down to get into a drop position against the wind as illustrated in this post:
http://lovelybike.blogspot.com/2010/04/upside-down.html

Whether UPRIGHT or UPSIDE DOWN, the North Road bars can be rotated below horizontal for your riding preference. This is one way to reduce the reach of your current setup while retaining the ability to tuck into a more aerodynamic position against the wind.

Further reading with pictures:
http://www.bikeforums.net/showthread...orth-Road-bars!