Correct, more tiles (Along with an increase to your damage bonus from 25% at GM → 30% at 120). Looks like in a Dungeon it would be 58 tiles at 120 vs. 50 at GM. In my experience 100 tracking with immediate response has always been plenty to avoid PKs. The only situation I ever run into troubles is if I am running towards the PK and the PK is running toward me, combined with a horribly timed passive tracking refresh, they can pop up on you. However, usually all 3 of those things things don't align at once.
From my personal experience I hate PvMing without tracking and camping. With tracking I just outright avoid PKs altogether. Most dungeons I can just make a big loop around wherever it looks like their going. You just have to understand how the tracking works and assume they are about 10 steps closer than what tracking tells you (due to the refresh).
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