@euphoric1 , Are you thinking about these for the Catalyst? They have a much different steering feel and use ski pressure different compared to previous models. In some ways I'd describe the effort like Twin Spar with steering bite that actually works. Might be worth trying your typical setup to see what you think.
I have not used the Navigator setup. I typically run some form of dual carbides. I see that they can be combined with dual setups, but I wonder how much gain could be achieved? With singles, I see more potential.
I could go on and on about carbides. I've tried quite a few over the years. I still swap ski - carbide, combos for the conditions I expect most during a trip. My main goals are handling and ease of riding long days. When conditions are poor, I add durability as another priority. IMHO, there is no one carbide setup that works for everyone. There are quite a few opinion out there about which carbides. I say, run what you like.
@High Country , That wear is a bummer. I've been through some junk over the years. I'd say your situation isn't solely the fault of those carbides. I wonder if that chassis has ski shimming is like those across the board? That didn't help, but it wasn't the only factor. Those are fairly durable carbides most of the time. The wider spread can work well with a variety of conditions. One disadvantage with wider spread is that the carbide runners are more exposed like single carbides. If you are riding clangers, the inserts take harder hits. Once the front section is gone the rest will soon follow.
If you guys want to ride sparks and clangers all day, go with long narrow spaced dual carbides on wider plates. The narrow carbide spacing helps share those rock impacts. The long carbide helps spread the wear. The wear plate cuts down on ski gouging. Backing off on ski pressure also helps. I typically go with that type of setup starting out each season. Last year was brutal. Buddy went with his favorite setup and it lasted one ride on the same machine I rode. My setup was looser handling but the carbides made a whole trip before I swapped.