The paper pot dolgo crabs I bought from (name escapes me now) were about 12" around the end of May. They are up to 30" already. Them little buggers sure take off. I hope to find the same or better when I get up to look at the siberian crabs.
I have the same knife as Ed for T-budding and small diamter stock bark grafts. I have an old, folding blade Buck knife, broken tip and all that I realized works slicker than a greased pig for all other grafts.