Honestly, I've also been scared to use replica/pull.  ☺
So, I setup a terminal with local HDD, and it does only replica/pull
from sources.plan9.bell-labs.com.  And then, I also do replica/pull
from that local machine to our file server...   In this case, I can re-
examine with enough time to see what is different!

I just read Russ's Tra page, however, it seems to me not so easy to
grasp at a glance.   I'm now suffering from discripancy between
new control(2) library and our applications written by Yoshitatsu.
Most of the problem is comming from his confusion of channel
usage(☺), however, I have to rewrite them before the start of next
semester...

Kenji