[Szayel may have let one of the sharp rods he was connecting to the machine "accidentally" fall toward Luppi's leg in a manner that would have ripped apart a human limb.]

Oops.

[He doesn't sound at all sorry for it either.]

[Szayel pulled the rod back just as quickly, assembling the unit while addressing Ulquiorra.]

The likelihood of it failing is slim at best. I'm more concerned about the range. As loathe as I am to say it, I believe I will need your assistance in assuring it will be as effective as we need it to be, Washu.