Significant lagging with Sony HMZ-T2

[mspusch]

from what you describe, it sound like the lag has to do with the tracking used.

i believe the IS900 is typically integrated directly with the nVis, how did you integrate this with your Sony HMD?
are there any differences?

did you try the setup with just an inertial tracker (like an Intersense 4)?

just a thought ...