Just wanted to share that I recently picked up some Vintage Ambassador heads for one of my kits. One of the heads would not tube up properly—it was dead on arrival. I bought the heads far away from home so returning it for a replacement was not possible. I contacted Remo in the hopes they would do something to assist—happy to report that they sent sent me a replacement head, and also added in one of their quick tech magnetic drum keys. Great customer service from Remo!