sliding under in games that don't have sonic drop is a bit of a bitch though, that's why I mentioned TAP.
it's the best strategy nonetheless-- unless you can drop at least 1.5 tetrominoes plus account for line clear delay in the time it takes to soft drop one, in which case you would platform clear the S.
You don't necessarily have to slide in. You can just stack it horizontally on the right so that the hole is against the wall and keep going.
why set up for a t-spin when the stack is there? I would prefer to play safe on the right and set up for quicker and multiple tetris. Just seems like more effort (all of this depending on whats in the preview) for not much reward..
thomas, the t-spin double sends 4 for 2 lines, and the tetris sends 4 for 4 lines. so it's definitely worth it for the trouble.
My strategy is T-spin triples (I can pull them off fast as heck) and then I either go for another or start tetrising.