Sensors would be more accurate -- but you'd never get them inside and hidden. Yuan's right; your best bet is to extrapolate using the surface changes brought about by the Sword. Through comparison of each set of data points, you should be able to more accurately determine the Seed's movements.

[Kratos straightens up from screen, tipping his head at Botta.]

Convenient for whom? Yuan has already almost killed me twice the first day I was here. I can think of other ways to interrupt your plans, ones without damage to my person, Botta.