Videomaker – Learn video production and editing, camera reviews › Forums › General › Open Forum › Remedies For Sticking Tripod Head? › @paulearsMy own opinion,
My own opinion, based on professional experience, is that Manfrotto fluid heads (e.g., MVH500AH) are good for the price point, and that Krytox lubricant can help the smoothness of any head. What you bought on eBay might well have been counterfeit — that's a common problem. I usually buy my gear from B&H.