

I think DS9 was pretty developed already by the end of TNG, so once it started there wasn’t that much left to figure out. This can be seen by the TNG crew visiting DS9 towards the end. TNG, however, felt a little more uncertain in the first season in that the actors didn’t have their characters nailed down yet, and it shows.
I suspect that Voyager might be a bit more like TNG in this regard - the concept was a bit more uncertain when they started. However, it does improve massively as it moves on.
I for one really like the temporal war storyline. And 7of9 is a great addition even if the writers’ intent was mainly that of providing boobage.











Sounds normal to me. The circle shape causes two steppers to oscilate between fast and slow in a sine pattern, and those two stepper speeds are phase shifted compared to each other, making it sound odd.
If you printed an elipse insteaf you’d get a different song.
The sound itself is expected, but it sounds like there might be some resonance at play, increasing the volume, but I wouldn’t worry about it.