Crystal Flash upon entering. Wake Mama Turtle, shinecharge, then use Mama Turtle to interrupt.

With ~200 Reserve Energy and at least 1 Energy tank, Samus will still be refilling reserves and Mama Turtle will return and hit again. It is possible to midair spark as Mama Turtle is approaching, where she will hit Samus on the first pass, but not after. This is frame perfect with Gravity, and when Samus is forced into a standup, her feet will be slightly less than a full tile below the ledge.

Entrance condition:

{
  "comeInWithRMode": {}
}

Requires:

"Gravity"
"h_CrystalFlashForReserveEnergy"
{
  "canShineCharge": {
    "usedTiles": 18,
    "gentleUpTiles": 2,
    "openEnd": 1
  }
}
{
  "autoReserveTrigger": {}
}
"canRModeSparkInterrupt"
{
  "or": [
    "canInsaneJump",
    {
      "enemyDamage": {
        "enemy": "Kame (Tatori)",
        "type": "contact",
        "hits": 1
      }
    },
    {
      "resourceAtMost": [
        {
          "type": "RegularEnergy",
          "count": 150
        }
      ]
    }
  ]
}