Just popped to my dealer and luckily had one in stock. Just took 20 Mins to fit (most the time was trying to get the engine cover on properly and I still don't think it's on perfect)?!
Idle is perfect on a hot engine, not a single wobble. Don't know if it's my imagination but I'm sure the car sounds a bit different and boosts a little differently?
Biggest test will be later when it's cooled down and see if it wobbles when at 1200rpm which is when it's been bad previously.
Was expecting to see oil everywhere when I opened the bonnet, I have no confidence in my mechanic skills!