All my mats are of the same manufacturer so I can't comment on lesser quality mats. I have no problems with bullets sticking (same mats, 6 years and tens of thousands of bullets). Yes, my mats are yellow and discolored, but they continue to work and I no longer have to continually repurchase or run out just when I need it. If you have found foil, parchment or screen wire better for your needs by all means go with what works for you.