Sorry to revive an old thread.

I am thinking of getting Schwalbe Marathon Plus for my bike. I had my first pinch flat last week after hitting a huge pothole. These Schwalbe's protect against puncture flats but don't help against pinch flats. How hard is it to change a SMP on the side of the road? Aren't they a bear to get back on the rim?

As far as pich flats are concerned, my tire was inflated to the correct psi. Would a better quality tube help with pinch flats as well?