Ok so i finaly got round to cutting the springs on my 5, suprisingly easy to do, i did them without having to take them off the car which saved loads of time, and due to the design of the springs they seat perfectly as i only cut 1 full coil off, this also means with the car lifted and the shock at full extention there is still compression on the spring.
The car drives as it did before cutting, and in my opinion looks loads better