I don't, but the minimum tracking weight isn't that significant. Often, except for records in very fine condition, a heavier tracking weight is required and the cartridge and stylus should be able to track at 3 grammes or higher without being damaged. db On Saturday, November 8, 2014 5:54 PM, Kurt Nauck <[log in to unmask]> wrote: Does anyone have experience with the Ortofon OM 78 moving magnet cartridge for playing 78s? It is only rated for 2.5 gms max tracking weight Kurt Nauck c/o Nauck's Vintage Records & Texas Ready 22004 Sherrod Ln. Spring, Texas 77389 www.78rpm.com | www.TexasReady.net www.MDADA.org | www.NewPledge.org E-Mail: [log in to unmask] Phone: (281) 288-7826 | Fax: (425) 930-6862