Right, i am firmly in the camp of this batch of pelletsd may work, but the next may not. Our club took some dai 30 jsb a few weeks ago and everyone is struggling with them it seems. So, what do the batch numbers on the tins mean? I have Mozzies with the following 0 790 09 - i am presuming 09 means made in 09? No idea what the other numbers mean? 4.52 30 (4.52 size, 30 dai number?) My Jsb express have 30007909 -Guessing 30 = Dai number, 00790 means something simular to the 0 790 on Mozzies and 09 is year made?? 0 4.52 - No idea what the 0 stands for, 4.42 size! Am i on right tracks?