mrzapp wrote:(...) tried to use it in MakeHuman with no other targets applied.
That's a wrong assumption. MakeHuman
ALWAYS has targets applied.
The default character you see when you start up MakeHuman has a large combination of macro targets applied (50% male young, 50% female young, 33% asian, 33% caucasian, 33% african, averweight and averagemuscle). In fact you
NEVER see the basemesh in MakeHuman. It was not intended for this. The basemesh stores only topology, and a base against which the macro targets are modeled. It does not store form.
Try to create the target with a more realistic human as the base. Like a young male or young female. The basemesh is a homunculus (or a monster), and I generally not recommend creating detail targets on it.
Also keep in mind that it's possible that the chin area differs a lot between female and male subjects. If that is the case, it's better to create a separate target for males and females.