Xgen Maya guides issue


Hi everyone, I recently started a project with Xgen and I was thrilled to create something cool. However, this is my first experience with this tool, I have been following several tutorials and I have tried to do repeat the steps from videos and some forums but it seems nothing works. I don’t know how to model busts yet, so I downloaded some from wesbites, the thing is, every single time I set the density parameter Maya generates excessive amount of hair, including with few guides (I have proved different density values and it happens the same). In addition I can’t simply understand why the hairs are going through the bust mesh, and even I create the density map I get no result at all. Don´t know if there are default preferences on Maya to work with Xgen or if it has do with the busts that I am using. Would be grateful if anyone knows how to proceed.