Twinslip has two complete circuits with crossover tracks from one loop to the other. The crossovers are in opposite directions so that trains can cross from the inside to the outside, or the outside to the inside without having to reverse. This layout demonstrates how one straight between the branches of two like-handed points offsets parallel tracks by two straights.
| 2 | Basic Oval |
| 2 | x 4515 |
| 2 | x 4531 |