one thing you have to watch out for when turning morphs created with the morph brush into injections is that blank injection channels for figures that have them are set up after the joint, but the morph brush puts the morph channel before the joint(though if you look at the cr2 in a text editor that seems backwards, but Poser reads the bodyparts from bottom to top)Which makes a big difference in how the morph reacts to joint movement, so while it is possible that your morph created with the morph brush, will work as expected in an injection, its also possible that it will not.