I’m testing a set of terrene CEs now with the crown studs.
Grip Studs provide the BEST traction EVER. Expensive though. I reviewed them a couple of years ago.
Flat top studs are better than round top, and concave tip are better than flat.
Kold Cutters tend to pull out.
And all studs don’t like rocks . . . however I have lost very few GSs and the crown studs in the CEs are pretty stubborn.