Thank you
That is what I assumed. Well it is quite ok, but leave the quest open for a real sculptie tool. I can handle it fairly well since I know how sculpties work, I paint the really precise ones in Photoshop. I think the basic problems are that using the faces is the wrong approach, it should use the dots if it is a sculpt. As you mentioned, I will get an approximate result which is most likely satisfactory for organic builds. I looked for a tool like that since organic forms are difficult to achieve working dot by dot. However when I saw that it is possible to also extrude the dots understandably I got the wish to make precise sculpts as well
But knowing the limits of a tool is also knowing how to use it, iAC3D will definitifely have its use for me.