Can I ask if you used tools to install the tires? That's why I learned to change tires without tire irons, there is just too much of a chance to pinch them, no mater how careful you are, it happens.
Sometimes new tubes right out of the box have defects in them (I had 2 out of 4 Bontrager tubes that had tears in them right out of the box).
I run 120 in both tires ALL the time and have never had a problem, but I never use tire irons.
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Ralph (not Ralphie) on a Roubaix in
Huntington Beach, CA
& Iron Horse Maverick 5.5