Thanks again Mons and Randombloke Got a sphere release tool off the net (left my oil filter removal chain wrench in Portugal by mistake), changed the front spheres and the lack of damping problem at the front disappeared. If there's anyone in my area, Woking, Surrey who needs to get hold of a sphere release tool in a hurry, you're welcome to borrow it. I would just ask for a deposit to ensure you bring it back!