Yes, I noticed the same thing. The DMOR9 plant I purchased from Hicks ($150) is still a little stick of a tree, didn't seem to grow more that 12 inches in 9 months. But the ones I got from Marta and grafted to my large trees are over 6 ft long since grafting it. I grafted a cutting of my grafted branch this January on the tree I'm trading with a forum member locally and that grafted branch grew over 4 feet in 5 months, I had to cut it back again.