[sideshow]

u need to find a scanner and read live data of the stability control
thats if its possible on a ford as their data can be crap sometimes
as they used to give limited live data afew years ago
u might get lucky and find someone who is actually willing to look at it first
then they might know how to cure it
but basically look at all the live data and guess which might be having slightly wrong values due to the fact its in another car
then rent a ford and read its live data and comnpare results
might be easy fix
might be massive fix
u r the first to try this
so spend a million dollars fixing it then tell me how to fix it for the next customer hehehe
thats what our cusotmers and forums people want heheheeh

anyway the first thing i would check is make sure the speed the abs ecu thinks its doing
is the exact accurate speed
then also see how accurate the steering sensor is
maybe on the bf 2 turns of the wheel is 50%
but your 540 2 turns might be 30 or 70%

the other thing is the yaw sensor
im pretty sure that measures g forces and body roll
maybe thats giving a bigger or smaller figure due to stiffer suspension
maybe try undoing it and sitting it on something soft or a very small beanbag type of thing where it wont react as quick so it matches body roll of the bf

but if u can road test it with live data this might point u in right direction

maybe even by the genuine ford diagnosing tool this might help u read all the live data possible