case tumbler

Quick poll to help decide. Frankford corn cob media or Frankford stainless steel to use in my Midway 1292 Tumbler. First media to five votes Many thanks

Anybody have any problems with their tumbler not 'tumbling' properly? I have tried mine with all different amounts of brass, pins and water but it never seems to get the tumbling action going properly, the brass and pins just sit at the bottom of the container as it goes round instead of up the...