Problems Editing .nif for a Race

[ShogunParker]

So I am trying to create a character that uses the "emaciated" body model from the "Robert Male Bodies" mod. However, the only two emmaciated models have either a penis or clothes. I decided to just delete the penis from the 1^st model in Nifskope. There didn't seem to be a problem in Nifskope, I simply deleted the branch, which left no holes in the model and shouldn't have conflicted with anything (I am 100% amateur when it comes to Nifskope, though, so enlighten me to any mistakes I've made by this point.) I even took one number down on the "NumChild" and updated the array on the main node, which appeared to be what someone else did on a video teaching something similar. Anyways, so it saved the file with no problems, but when I try to load it as a body model for the race I'm creating, the GECK crashes and tells me there was an error. Can someone please enlighten me as to what I'm doing wrong?