The CMFTW knife is superb...that is going on my redeployment-gift list
Now, I mentioned the possible issue with shipping larger fixed blades back home if you're not traveling with your unit, but there are other considerations. I'm all in support of carrying a larger fixed blade, but the key aspect is the sheath system along with how and where you carry it. Most operations involve wheeled or fixed wing/helo-transport. Having anything long hanging off your kit will get caught up in doors, seatbelts, and seat-webbing. I've personally observed one young trooper getting hung up coming out of an up-armored HMMWV, and another who was eating in a DFAC and when he stood up, the plastic chair was hanging off his fixed blade
I'm out of uniform, but now wearing "combat casual" here in Afghanistan. The two fixed blades I rotate, but carry one daily, are the TOPS CUT 4.0, and the ESEE 3, both worn in Kydex Armatus sheaths (typically worn horizontally/SOB). I'm a professional low-speed, high-drag advisor...no kicking down doors, low-crawling in the sand, filling sandbags, or doing any foot-patrols. Just a retired vet still working in a combat environment and unabashed knife enthusiast!
In the past I've carried Busse, Mad Dog PATAK, Randall #15, Cold Steel SRK (my first fixed blade on Active Duty back in the early 90's), and a few others. If you're willing to spend the money on a Custom, I really recommend it. No, it likely won't be an EDC-user blade, but it's still comforting, adds a story to a knife you'll hopefully hand down to your son/grandson, and keeps the tradition of carrying a combat knife in combat alive. Along with a good fixed blade, I still do appreciate a SAK and/or Multitool (Swiss Spirit X). You will most often use a folding knife, but there is a lot of mental comfort derived by a fixed blade.
Weight is a factor. I love that the CMFTW is under a pound; that's important. Most fixed blades will be carried more than used (unless you do some training), so if your operations involve more dismounted stuff, consider the weight of the knife system.
Also, make sure you pop back in and tell us what you decided on...here area few I've been carrying and using:
ROCK6