I am on Progress springs with HFP shocks setup and agree that they feel better than the HFP springs. Furthermore the drop is just right. But these progress spings creaked whenever I turned the wheels either to the right or left. Its more pronounced when negotiating bends+ramps in carparks (at around 5-10mph). No problem on straights though. It seems like the springs were chafing against the spring seat or something. Is it only me?