Manhole Stacking
From Hard Drop Tetris Wiki
Manhole Stacking (マンホール積み) is a TD Attack Opener invented by Sioyaki.
1st Bag
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Setup rates are 42.22% if not including Mirrored and 56.19% if included.
2nd Bag
TST A (Always) |
TST B (L>O) |
TST C (L>S) |
TST D (S>L) |
You can always do TST. You may use only "TST A", or you may add "TST B" to it, or you may use "TST C" and "TST D". It's up to you.
Derivation
2nd Bag TST D
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You can always do TSS.