T-stopping is not so much a stop as it is a technique for controlling your speed. If you are descending a hill at a high speed, you can use the t-stop to slow yourself down a little. You can use the t-stop until you have come to a complete standstill but it is most efficient use is speed reduction.

The concept is simple. Take one of your feet (whichever one you feel most comfortable with) & drag it behind you, perpendicular to your other skate & to the direction you are travelling in.

When you are first starting out, you will not feel stable & you may not be able to hold a t-stop for very long. It will help if you put the least amount of weight possible on the foot you are dragging. Try to make it weightless. Put everything on your front foot & bend your knees. As you become more stable while t-stopping, you can add a little pressure to the foot you are dragging & as a result, slow yourself down more quickly.

I must also take the time to warn you that t-stopping is perhaps the fastest way to wear down a set of wheels. If you are interested in getting the most life out of your wheels, it would be in your best interest to use the t-stop conservatively. Also, remember that if you t-stop, the wheels on the foot you drag are going to wear a lot more than the wheels on your other skate. This means that when you sit down to rotate, you should probably also switch all four wheels from skate to skate in order to even the wear out.