I have the lightest footprint of all. Its called the Nada. The tyvek footprint for my Tarptent Squall 2 was close to 1 pound, so I started not taking any foot print at all, and it has worked fine the last several years. I don't wear out tents by wearing holes in the floor, I wear them out by the zippers failing, or the sylnylon getting old and cracking. My Squall 2 has a floor, so I don't think any sticks or rocks could poke through to puncture my sleeping pad, so I can't think of a reason to use a foot print.
Is there a reason to use a footprint?