Posted for "Dave Saylor" <Dave@AirCraftersLLC.com>:

Jim,

We've worked on at least two planes that had a nylaflow fitting fail, one
went off the runway and folded a gear.  Most installations I've seen leak at
least enough to make you keep a close eye on your reservoir.  The only place
we use nylon tubing for brake fluid is from the reservoir to a static
fitting before feeding the master cylinders (as long as it's aft of the
firewall), but it's not that much harder to use rigid tubing there.

We usually buy the rest of our brake hoses from Hoses Unlimited in Oakland.
If you call Sandy at 510-483-8520.  She will set you up with the very best
quality Aeroquip hoses.  Just give her lengths and applications.  They won't
turn away experimentals, and you get TSO'd parts.

Anywhere you can use aluminum tube will save a little weight over hoses.
We've also used DH brake lines, which are really nice but also very
expensive:

http://www.olympus.net/personal/2thman/dh_brakelines.htm

Any problems, give me a call.

Dave Saylor
AirCrafters LLC
831-722-9141