I seem to be struggling mightily with my TG6 and strobe. in TTL mode my photos look to only be illuminated by the camera's flash, and the photos are very underexposed. I think it might be because the S2000 timing is off, where the camera adjusts to account for the strong pre-flash and then there isn't the correct illumination when the photo is captured. Fill-in flash on camera, S2000 set to TTL with the knob turned to "B", no magnet.
But, if I simply turn the strobe to max output things seem to be fine?