Truss rod sources?

[count_funkula]

I've been using Stewart MacDonald truss rods and, while I like them a lot, they require a pretty deep channel in the neck blank. This is preventing me from making my 5 string neck as asymetrical as I would like it. Where can I get a similiar truss rod that requires less depth?

Any ideas?

[Phil Mastro]

Luthier's mercantile makes a smaller one, the TRST model

LMI

it's not double acting though

[budman]

http://www.grizzly.com/catalog/2005/luthier/018.cfm?