I've had my 75rd Chinese drum for over 25 years and never had a problem with it. I know 2 others who have had there's a long time as well and never heard of any complaints. I can't say I use it a lot. As a matter of fact I haven't used it for several years, but have put it through it's paces a number of times in the past and it functioned perfectly. I've been told over the years that the 100rd drums aren't dependable, but never used one.