thenewguy.....here's a few Q's

what's the RPM of your tumbler?...what is the LPI (or the micron measurement) of the mesh you used?

you mentioned that you'd prefer to have used 120 micron, do youmean 120 lines per inch?

if not, then 120u is probably too fine, (depending on the cylinder speed, the type of strain, when it was harvested, how long it has been dried for and the duration of tumbling etc), a good all round mesh size range would be 135 ~ 155 micron (or 110 ~ 130 LPI) for most modern hybrids if quality rather than quantity was your aim...with a 120 micron mesh, it's possible that some resin heads would not pass through the mesh (at least initially)