Sorry Pete!
I thought you may not have had them as you were unsure of a couple of them, my mistake! When his next series comes out, apparently 2013/14, it should have at least 15,000 listings. However, I don't think you should worry too much about the reference numbers changing, my '94 and '02 Tieste books still carry over with the same classification numbers as the current '06 volumes. I have over 100 non-Tieste pieces, mainly pre-1930. I asked him if he was going to include pre-'30 tinnies next time, and he said he may or he may publish a separate volume to deal with these. I'm thinking of maybe starting a pre-1930 tinnies thread, what do you think about that? Some of mine go back as far as 1877 :)