Jump into the respawning shot block. It helps significantly to aim down to get trapped into the block. A normalized method to set this up is to shoot the block then immediately perform 5 full-height jumps.

Requires:

{
  "obstaclesCleared": [
    "B"
  ]
}
{
  "heatFrames": 600
}
"canJumpIntoRespawningBlock"
{
  "or": [
    {
      "heatFrames": 900
    },
    {
      "and": [
        "canInsaneJump",
        "canComplexCarryFlashSuit"
      ]
    }
  ]
}

Dev note: The 900 heat frame option gives two leniency attempts. This is likely only useful to avoid a crouch jump and preserve a flash suit. This is not needed on strats that go directly from 9 to 2, because they require a crouch jump or X-ray.