When I took it off road the other day I was following a slower bike and was playing with all the pas levels.
It surges a lot less in every scenario, pas level one on mine almost feels like your riding a nippy non powered bike now, the motor seems to negate the extra weight but matches your pedal input very well.
TBH I was never that satisfied with the PAS levels on the stock controller and used to run it at high most of the time because of this,
I do not know how to explain, but to me the stock one almost feels like it was fighting with itself at lower levels it just feels a lot more natural now and less lumpy instead of fighting the power it just provides the right amount in the first place.
I do not know if that makes sense? And it may have been something that could have been improved on the original with programming.
Oh the wheels have arrived and are fitted, they are much much lighter than my old set up but due to the continued terrable weather they are yet to be tried out.