Porthos, That is a different thing. This is about what the morphs do -after they are injected. Spawning a single morph (well, one per group) is still the ultimate way to do a character that you use frequently. It taxes a system the least. V2 is set up the same way. She has construction morphs that are linked to trans channels too. When you use those shape morphs with the link, poses that set the eye trans to zero get over ridden by the ERC input from the morph. When you use a spawned morph there is no longer a link and the pose data controls. The problem with just using V3 with just the injected active morphs - the V3 head is so large and morphs that change a lot it it are so large - if you have very many at all, you are fast filling up you RAM. With a single spawned morph, you have it almost as small as you can = the base geometry + one morph. (The only way to go smaller is to substitute the morphed head for the base head in Geometries.) If you system works fast and you do not need to optimize the elements in a scene, then learning to do the spawn step is just an academic excercise.