Timing on mudrock drop is incredibly important. See below:
If SA is pot1 drop at 42 dp
If SA is pot 2~5 drop at 43 dp
If SA is pot6 drop at 44 dp
Besides this, timings are reasonably flexible. Slightly early / slightly late are all fine. Basically Mudrock S3 is used to dodge explosions / kill casters / dps boss.
Everything should be possible with Pot1 for all 3 units. -- Watch live at / gl1tch3d