"Are spawned morphs delta only? That means they are as small aso morph .oj exported stripped down to deltas and reloaded?" In addition to the delta lines a targetGeom channel has about 21 lines of code, these 21 lines are ususlly a very small fraction of the channel compaired to the deltas. Spawning a morph target, or loading morph target from obj, should result in exactly the same channel in the character.