I have several hundred spread over many bases but they're all no-star at this point. The only starred one I've seen so far was a one-star that snuck up behind me and with the help of its pack thoroughly vivisected me. My first wolf traps (dug out pits) were usually just inside the Mountain biome and my taming outpost building was just outside it so the cold wasn't a big deal during taming. I used the frost mead when luring the wolves back to the trap and then hung out until they were my friendly pooches. I'd breed up about 8 and take half to the nearest base. It was like herding cats - they'd follow just fine until some prey was detected then they ignore me just like my real world dog lol. Unless we scared up a troll all of them would usually survive the trip. We stuck to Black Forest and Meadows for travelling.