I'm the kind of person that adjusts to the car setup rather than adjusting the car. In the old fiesta, the only two things you could do for positioning was move the seat forward/back and adjust the backrest. It was fairly easy to set up and get used to.
When I test drove the ED30, I didn't tinker with any of the seat controls and just got used to the driving position. But since I let a mate have a sit in it, I had to readjust it and now I'm not sure how I should set it up.
Positioning the seat forward/back and the backrest is easy:
Adjust the seat position so the left leg (whilst pressing the clutch) has a slight bend in it.
Adjust the backrest so you can reach all the way around the steering wheel.
Now the GTi has the options for adjusting seat height/steering wheel position/lumbar support. How do I know when these three things are at the right setting for me?