I'm going to grafting some C. mas named varieities this upcoming year. With all the discussion regarding grafting, can I ask for some advice on this topic? I've done apples with success but that was at least a decade ago. Any thought on type, temperature, etc. I'll be grafting between established small trees (3-8 years old) to lesson risk of loss of my collection. Last years poor spring resulted in the loss of two trees.