RE: Modifying Proline Hammer tread??
I have Several tires mounted and weighted for different terrians since I crawl/comp on a wide variety of surfaces. And the Panthers seem to be the best all around tire except on river type rock piles. The panters are just too soft and pliable, so when the tire gets caught in an undercut or hole they will actually "pull" deeper into he hole due to traction on top AND bottom of the tire at the same time. The Badlands seem to work the best on the river rock type rock pile and on the decomposing granite we run on @ Texas Canyon here, and the Panters do very well there too but the badlands side hill better there.
The point is there are several great tires on the market with great results on different surfaces, but the Panthers will work on almost all of them well. But, if you have the means to have several sets mounted and ready to go then get them all and learm how and what surfaces to use them on.
Or Not!!