The Tester Approves thread (see first post)

...The UltraTorque hack was based on the availability of very cheap end of line Veloce and Mirage cranks... ...but since Campag dropped it from the cheap groups, it's no longer so easy, for reasons identified previously.
Set eBay to EU: plenty of NOS Veloce and Centaur to be had for around £75.

Even carbon Centaur can be had for £120.

Which reminds me: is having Fibrelyte adapt a ring, still what you would recommend when hacking carbon cranks? Apart from anything else, it would leave the cranks unmolested as a road double.