Interesting. So when you have a pinch flat on a motorcycle, it cuts the sidewall of the tire too? On mountain bikes, it usually pinches the tube between the rim and the ground, but leaves the tire in tact.
I've never had a flat on a dirt bike, so I don't know much about that. I just know I suck at changing tires.
The sidewalls of the tubeless trials tires were softer, so the footprint really spread out. It was like the difference between running 25 psi and 8 psi on a rock crawler. That would probably lead to squishy cornering, but it sure rocked in the technical stuff. If I could find a way to lace a trials rim to my hub, I'd do it in a heartbeat just so I could go with a tubeless trials tire in the rear.
My current Pirelli tube-style trials tire is good, but nowhere near as awesome as my old tubeless michelin. I couldn't get that tire to spin if I wanted to. It had so much traction, and would hold a sidehill like nobody's business.