I have not used a Contrail but have used the original Squall and a MYOG TT1. If Henry still uses this pole stock:
.344" x .019" wall (.023 lbs/ft, 96,000psi)
(I'd be surprised if not) then my experience would probably apply to the Contrail as well.
I started using trekking poles in 2006 and that is what I use in my TT1 and what I'll use with a Rainshadow at Philmont in a month.
The standard Tarptent pole is adequate. Some caveats:
* will sink into soft ground .... place it on top of a flat stone or piece of bark or something.
* with the std length guyline running from the top of the pole you can get enough compressive force to bow the pole, especially if you are trying for a really tight pitch. I use a longer guyline (about 2 ft longer). That changes the geometry and reduces that compressive force a bit.
* I've been tempted to switch up to one of the larger diameter poles but it hasn't been enough of a problem for me to do that even though I have a very convenient source (a 5 minute walk from where I work)