BT Cannon

The BT Cannon, where the letter "B" stands for "beta", is a Double Triple setup invented by a Japanese player TCM-β. It uses a good balance of pieces and it looks beautiful. The important foundation is an early I-mino.

Basic Opening
Opening 1

Opening 2

BT Cannon C-Spin
This particular setup is almost always possible, depending on the order of the pieces in the second bag. The setup also has multiple Perfect Clear opportunities that end on the end of the fifth bag, meaning the setup can be made again. There are more ways to use the third and fourth bags than are shown.

IT Base

TLJ Base

After the Triple
With the remaining hang, you can even stack and transition into a 4-wide combo.