In all modern Tetris games, the 7-bag system ensures that the blocks are evenly distributed. You will always receive one of each of the 7 deadly blocks in each set of 7. The order will be different each time, but with careful planning and the ability to “hold” a block for later use, there are opening setups that work 100% of the time to allow a technique called the Mechanical T-Spin Double. By looking at some of the pictures and explanations I have provided, you can learn the tricks I have been using in my videos to achieve ridiculously high scores and come in first place in Tetris 99 for the Nintendo Switch.
I will show you some common setups for the first bag that will enable you to continue theoretically and clear about 18 T Spin Doubles before being forced to lower the stack and repeat.
The Standard Method
In just 7 easy steps, you can make consistent T Spin doubles. These images illustrate how it works.

This opening is what I call the standard or the common method for clearing T Spins as fast as possible. However, other methods will be covered later. In my experience, this is going to work in most cases and is best for beginners.
However, there are infinite ways this T Spin loop can be started. Much like Chess, Tetris has openings because there is some consistency to the blocks, even if we cannot predict their order.