I'm pretty sure the plugs I pulled out of the heads 2 plus years ago were not white. I know for a fact I got one of my heads back along with a different head that I did not send in. As I cleaned the bottoms very well. So I knew I got back at least one of my originals. I did call him out on why did you not send them back as a pair as the ones I sent. I believe he said he already had 1 ready to go.