brake conversions

["Christopher A. Kantarjiev" <cak@dimebank.com>]

I'm thinking about John Lye's brake caliper conversion for both my 4A
and GT6+. I have questions:

1. There seems to be no direct evidence that it will work on a GT6,
though it seems it should. Wheel fit is the issue. Does anyone know?

2. I seem to recall that there is a version of this that uses a vented
rotor (maybe from a Cressida) and, obviously, a different caliper.
Details? Work on a GT6? 

Thanks,
chris