I haven't worried to much about them puncturing the tubes. We use a net, since we catch mostly shakers. I have not run into anything over 6 feet. Don't know what to do if that happens.
On the speed, I don't have a GPS or speedometer installed at the moment. So it is hard to gauge the speed.
But it easily planes with little or no effort, and that is without a doel fin or smart tabs. But one thing I can tell is that the hull handles rough water better than my previous RIB. It must be the deep V going all the way back.