Presumably you have a stock steering wheel? i had something similar after I changed the steering wheel and the little "nipple" sensor thing wasn't in the correct position. It seemed to confuse the car into thinking I was going sideways everywhere!
Sounds like I'm in the minority here but I like the veilside kit if done properly with the right wheels. I agree that maybe it's not the current fashion but I still thinks it's nice. Maybe I'm just old
Looks great. I love the Z burgers, am replacing the front bumper soon and was a bit gutted when I realised there wasn't an indent for one on the new bumper.
Dependent how urgent this is it may also be useful going to a show, as often there are traders with a decent range of seats to try. There may be some at japday next month which isn't far from you. May be worth thinking about if you're going anyway?
Looks great and the ride height is really nice. Is it just springs or did you have to change some other bits too? Do you have any trouble in multi storeys?