Get some knob things from Peter White.
I used this with my dual E6s on my LeMond with carbon fork.
Don't overtighten. Use a bit of electrical tape to keep them from sliding.
Works great.
Are you using a front rack?
I mounted my eDeluxe on the rack with some hardware:
You can use a similar setup with this to get the Ixon down there:
I've also used the
TerraCycle mounts with my Ixon. No pics, as its on my town bike now and just rides on the handlebars:
This might work too, from
Paul: