We have been running a set for the past year where we just cut the center lug into 2 pieces directly across the tire. We think we see an improvement. The tire seems to be able to flex a little easier while running a little higher pressure. The buggy weighs appx 4500 lbs, were running around 4 to 5 psi originally, now see the same traction at 7 psi.
Buggy is for tight technical stuff but fun to go fast when space allows. 7 psi really helped it drive better.
Tread wear, chunking, hasn't really been an issue. The cut lugs are looking similar to the other lugs.
We used a sawzall with a wood blade, took second blade and welded to it to make double wide cuts. Really only 1/4" at best.
I am close to finishing mine and will prob cut before i ever hit the trails