I have a 10 foot tall Amur maple that looks grafted and was in the dying section of the nursery. Tree got a little tlc and is now in pretty good shape. The base is about 3" the apex which I already chopped to fit on my SUV is 1". I'd like to "part it out" and do some air layers to get multiple trees. Is it possible to do more than one air layer on a single trunk? In a perfect world I'd like to do 4 at once.