Hey Rich, the knocking began not long after I fitted the coilovers say a few months driving, only on the front it seems but Ive bought all 4 adjustable drop links as I prefer to keep ontop of any wear and tear and refresh the suspension with new parts. To ensure it was the drop links I removed them and tied em away and rolled the car down the road of which it usually knocks due to the ground being uneven, the noise had gone.
Ive no access to ramps unfortunately just jacks.