Black Tea Cannon (紅茶砲)
Black Tea Cannon is a TSD → TSD → PC opener.
The original sequence is a 6-height PC that looks like this:
You will have a J left from your second bag. If you were able to do 2 TSDs like above, you'll have a 33.33% PC chance.
In certain second bags like LIOSJTZ, you won't be able to do a TSD. However, if you are able to place ILSO like above, you'll have a 100% PC chance with these solutions:
The third solution is shown again because it's needed for queues like TJZOJ
Perhaps a more interesting followup to the initial TSD is the TSD → TSD → PC (8 height) sequence found by Okey_Dokey with pwn_by_numbers's
setup-finder, as the residual field after the second TSD has a 100% PC chance.
You will always be able to stack the second bag this way unless O comes before I or T. You'll just have to spin them in in some cases.
With the remaining field after the second TSD, you'll have a 100% chance of being able to do a perfect clear with these solutions. The field is symmetrical, so mirrored equivalents are also valid.