The story of how the trick came up, if I understood it correctly, is as follows.
Gus was in Colombia teaching some kids (he always says Colombian kids are incredible top players). In particular, he mentions one called Marlon. He was showing them the baston (sun) to trapeze move, going under the leg. But they had problems releasing the top from the string, specially because the thin string they used over there. So Gus thought about a way of releasing the top easier from bastones and he realized that starting them with lasso (sewing machine) catch, instead of a trapeze catch, the tip would have only half a turn of string around the tip on release. From there he started alternating bastones and lasso catches. He also mentions that much later, while visiting Carlos Solis in Slovakia, he started going directly from roller coaster into the this low-bind bastones.
I tried them for the first time after editing the video and I think that perhaps some players may find them easier than regular continuous suns (aka wheel-of-fortune) as the top can be spinning fast and the movement is less subtle. But I have not done many in a row, not under the legs, nor seamlessly switched from/to roller coaster and wheel-of-fortune, yet.
