when doing 236D for oki/you're far away, always always always summon two steins
summoning just one stein + 236D eats the stein's normal laser and is much worse at keeping someone in place
if you do, say, 5D 6D 236D, you get 5D's laser, 236D passing through to 6D, once more to 5D and once more to their character.
similarly, j.D j.2D provides some level of protection from air to ground
and if you have time: always charge the first stein, but don't charge the second. the second stein's laser gets eaten by 236D, and the delay on the first charge laser should cover you as you run in/land