That all sounds good mate... Pretty much what I would expect after installing / setting up about 5 of these on 33's...
IIRC, I thought the throttle arrow went up? I could be wrong and just having brain fade though... So long as the throttle display is correct I guess...
Re the knock sensor wiring: I wired in a switch so I could swap between sensor 1 and sensor 2... But mostly I just leave it on number 1... All the others I've installed have been on sensor 1 as well... FWIW, I notice very little difference between the two...
The raw readings sound about right...
I found I get the best results by driving the car for about 1.5 hrs and then doing the knock set function again... 0 at idle is pretty normal when the car is coldish... As it heats up it can creep up to anywhere up to 40... This is normal... As you say when cruising or at WOT sits around 0 if everything is working properly...
When it knocks / pings / detonates, the signal will go over 100... More likely closer to 140....
All in all, sounds perfect to me mate...