not going into the back country will save a bummed trip, but riding around home to provide info wether your shaft is a good one or not before you go to the hills is sad. It will see more punishment on the way to the clemina cabin in the ungroomed whoops then all weekend in fields and ditches. Install the clamp to assist saving it either way and hope polaris steps up for once, waiting for warranties to go off and having to buy the fix kit to get a reliable sled kept me from owning one over the years. Unfortunatly all brands have their gremlins
Load is load no matter where you find it. If you have traction you have load simple as that. The end cap spins inside the shaft when it fails the drivers don't pound on the whoops and break the shaft. If I punch it from a dead stop and the skis lift to the sky I have as much load on that shaft as my stock engine is able to apply once the track is spinning at 40 mph in 2 feet of powder there will be less load then what I am giving it every time I stop and smash the throttle, thats when the clutches will be giving me the most mechanical advantage and applying the largest amount of torque on that shaft. When I am going 50 60 70 or 80mph down the trail bumps or no bumps there is only a small load on that shaft. I am willing to bet that every shaft that failed did so on acceleration or hard on the brakes.