turf saver mods

can someone show me in a pic or video on how to make stock turf savers more agressive without the chance of ruining the tire?

I cut mine down with a razor blade. Actually I started out with a grinder, but that was just a smokey mess. The razor worked much better.
At any rate, the problem with turf tires is the tread is so shallow that even cutting them doesn't make a big difference in traction.