Overloading the PLMs can be done with as few as 2 PBs if they are placed precisely. Place them two ledges above the item - to the left of the morph tunnel item. It is important that they are placed on either of the flat tiles, not the sloped tile on the right. Afterwards, freeze a crab on the edge of the speed blocks, such that Samus can jump inside and stand on the crab. Exit G-Mode and rotate to obtain the item, then kill the crab with Wave Beam to fall back down.

Entrance condition:

{
  "comeInWithGMode": {
    "mode": "direct",
    "morphed": false
  }
}

Requires:

{
  "notable": "G-Mode Overload Speed Blocks then use Frozen Crab"
}
"canTrickyUseFrozenEnemies"
"Wave"
{
  "or": [
    "Gravity",
    {
      "and": [
        "canSuitlessMaridia",
        "HiJump"
      ]
    }
  ]
}
"h_canUsePowerBombs"
"h_canUsePowerBombs"