Let it grow to 6 or 7 true nodes then top above the second true node. Use the first set of branches on the first true node as clones later when the growth starts to explode.
Bind down the two mains and when they are starting to grow well (not too long) top them for two mains on each side for a total of four mains.
Spread the two mains on each side apart to for an H shape (the manifold). When these have recovered, and they start growing top them for a total of 8 mains.
Depending on the stretchiness of your strain, you can continue topping and binding to the tomato ring until you are ready to flower (16, 32, 64...).
By arranging and bending the faster mains, you can even out the growth and create a perfect and short canopy.