I honestly thought I would feel the same, that the V8 would be far superior off the line, but not as different as many would think. I have owned both V8 versions (2003 & 2006) and still am driving the 2010 and the V6 seems to jump off the line(touchy throttle) and goes! Once 4K hits on the tach, the VVTi must switch and you get another little burst of acceleration. Again the V8 is quicker overall, but by seat of the pants, the V6 holds its own.
On a side note, my TE has KDSS too, I was amazed how little body roll it had, and sure enough

My 2006 has the XREAS and the KDSS seems superior on road.