Utsusemi Macro

Ok, so I finally got DNC to 74, and now have access to Ni...awesome! However, the macro just ain't working as I expected, here's what I have:

/recast "Utsusemi: Ni"
/recast "Utsusemi: Ichi"
/nin "Utsusemi: Ni" <me>
/wait 1
/nin "Utsusemi: Ichi" <me>

Ok, so I have them both on the same macro for space saving reasons, as well as familiarity. The /wait is in there because for some reason, if it's not, I get "unable to cast spells", even though it seems like if Ni's timer isn't up it should just automatically cast Ichi, but doesn't. Lag on my end, I guess?

And the weirder thing, is that sometimes it just skips Ni altogether, even if I have no shadows up at all and both recasts are 0, just goes right to Ichi. Why would it do that?

Anyways, noobish question I'm sure, but as I've never used Ni I don't know what I'm doing wrong. Suggestions?