@GenXrider So I see you've received your 700 and have ridden it... how is the PAS?
I'm going to assume that it's similar to these other rear-hub bikes with a cadence sensor but you could tell us now how it actually is.
Yes, I was riding my new Ride1Up 700 today, and I was testing various PAS settings and the throttle today.
The pedal assist works exactly as I had understood it to work since Ride1Up reportedly moved from a speed based assist to a current/power based assist as per the interview with Kevin in June 2020 that I had previously linked to. It's very different from your experience with your Sport and from a Ride1Up 700 that was purchased in the first half of 2020 per a recent comparison review in the Ride1Up section of this forum.
Regardless of which assist level I choose from 1 to 9, from the time I start pedaling, power (watts) stays in the same range, although it does drop gradually as the battery voltage drops. So, for example, if I set a PAS level which is configured to 6%, and begin to pedal from a slow speed, the power reading will show 34, then 51, then 34, fluctuating from one to the other. Whether I ghost pedal, pedal lightly, pedal faster in a lower gear, pedal with high force to increase speed, or increase speed further while pedaling going down a small hill, as long as I am rotating the pedals, I see no difference in the way it alternates between 34 and 51. It just tries to maintain that same power regardless of the speed or cadence. The exception is if the bike gets up to 28 mph, then it will start dropping the power level. I didn't exceed that speed enough or long enough to see if it will drop power completely.
I'm going to tweak my power settings, as I fully expected I would. I had set PAS 1 to 3%, which shows 17 watts on the power indicator while riding. When riding along at 10+ mph with no assist, I don't even notice it when turning on PAS 1 with it set to 3%. If I get on a flat section of road and ghost pedal, it will roll me along at about 5 mph. So, that was too weak to be useful for my purposes. I'll bump it up to at least 5%. I tested 6% in PAS 2, which is noticeable yet light, and that would probably be fine for PAS 1, and I'll bump up PAS 2 to something higher. I had PAS 3 set to 12%, which was showing 99 to 115 watts, and I used that to ride up some hills, but I still had to shift down and put in quite a bit of effort. I'm wanting a good workout, but I still might bump up the assist power more for hills going forward since that was a big reason I wanted an e-bike.
After all I've read, one thing that surprised me was that using the throttle (throttle only, no pedaling), the bike powered me up to 28 mph. I tried it again a little later, and it got up to 27. The battery was lower the second attempt. I was expecting that with throttle only, it might top out around 20 to 22 mph, so I was surprised when the speed hit 24 and it continued to accelerate. I also confirmed the speedometer matched up pretty well with a GPS speed app.