I ran the burandt rc3 airs shocks for a season. The biggest thing I liked was the 3 position clicker. I kept the rear skid in clicker 1 for most riding and made it a fun playful sled. If I needed to keep the skis down to climb I could easily click to 3. I did have the coating on the shocks get destroyed and had to be replaced after one season. Rocks and debris in the skid smoked them from spring riding. Not an issue with coil overs.I'm surprised nobody is saying Burandts Fox Floats. Everyone who has ridden my sleds has went and dropped the 2800 for them. Just like posted above all these other ones are too hard to set up. You just put in Burandts pressure and boom you have one of, if not the best set up available. Spring shocks are so 1990s. Last time I rode with Cody Monroe he broke his spring in a ski shock. I have yet to ever see a air shock fail.
I’ve seen both air and coil shocks fail. Cody runs Carl’s valved mono tubes on his booster and Carl’s valved velocities on his 900. Not sure which one he was on when you hired him to guide you... Those springs seam like they would break easier than most aftermarket though.