who I've heard is pulling out of the U.S. Market.
First I've heard of this. Credible source from the company or unaffiliated chit chat at your local room...?
I'd go with the Cuetec based on price, performance, and the difficulty of getting support for the Mezz if you had a warranty issue.
Have you had difficulty with Mezz warranty claims personally...? ...or is this an extension of the rumour about their supposed leaving of the NA market..?
I don't know very many Mezz owners to be honest. Most that I'm aware of are using an Exceed model. Which supposedly places a higher premium on quality, so I don't know how much that plays into the dependence on warranty.
Specifically speaking about the Mezz PB-G breaker. I've held 4 in my hand (3 with wrap) and owners had zero issues that would require any level of warranty service. In fact, I have never heard of anyone using any level of Mezz equipment, making a warranty claim. Not saying it hasn't happened, or that a warranty is useless. Just that needing access to warranty has been moot based on my small sample size.
I have demo'd the Cuetec Breach at a show. Which really isn't enough to give a credible review. However, other than saving a bit of money it did nothing to differentiate itself from either the BK Rush or PB-G. All these CF breakers seem to be so close in performance that I truly believe it's a matter of what tip happens to be on it, or your specific take on brand loyalty. I'm not ashamed to say that I bought the PB-G for sake of being brand loyal. I paid more for it and waited longer then I could have for a BK Rush. However in my neck of the woods the ratio may be near 100:1 in favour of the BK-Rush. To me it's worth a couple hundred extra to carry something that's equally as good but notably more uncommon.
If warranty coverage is a driving consideration, then I'd go with the Predator product.