FNM, I am going through all my gear at the moment and tweaking my set up too, seeing as I can't get out to spend a night in my tent - other than my backyard. Spending a lot more time on the forum too
I would honestly advise against CF trekking poles, if you were going to give them a whirl for walking as well as being your tent poles.
I own and love BD Carbon Distance Z poles, I bought them explicitly for trail running but ended up using them more often than not walking too. The handles are a nice size for my hands and they are awesome if you have to fly anywhere to walk as they fold to nothing
BUT when I have tripped over them, caught them in vines etc and exerted some lateral force, they sure feel like they would love to snap. Okay if I am out for the day, but worrisome if they are going to be tent poles.
The additional problem with my BD CF poles are they are fixed length and are too short for the XMid so I had to mess around with getting CF pole extenders from Zpacks which ended up costing a bomb and didn't quite work with the tip of my poles anyway, so I had to leccy tape the end of the poles to create more width to fit snugly. I also initially had them cut too long and they would have been sitting at 122+cm. This was too high to have the XMid in 'limpet mode' as Lamont calls it. Sure, you could fix it by angling the poles, but the pitch would have been way better set at the magical 117cm that the XMid loves.
If you went the CF pole route, your fixed length poles would be a touch too long for the tent, so you would have the same less than perfect pitch.
Carbon fibre poles as a stand alone tent pole are totally fine for the XMid though. I own some very light, delicate feeling CF shock-corded poles made by a forum member for use when bikepacking. I was skeptical about them being solid enough to pitch the tent, but it was one of the best pitches I have ever gotten and surprisingly there was no force created on the poles at all. Such a beautifully designed tent. So, if not wanting walking poles, going this option would totally work and be as light as a feather.
I own clunky Komperdell Ridgehikers which I was happy with (until feeling the lightness of CF
) as they feel rock solid and I would have no qualms about using them as my XMid poles , I can adjust the height too to suit the weather. I think really that unless I am flying anywhere, I will go back to these chunkmeisters for the XMid.
In an ideal world, I would have the lighter Fizans, but can't really justify the $ when I have something useable already.
So, a very long way to say- if you were wanting to use trekking poles and don't own any already, the Fizans seem a very optimal purchase.