IM not touching that one LMAO but i learned alot from experimenting with this info from the wiki
Q : How to change the penis size?
A : Getting naughty huh? Well, you are in the right place! Open the "Advanced Bonemod Window" (usually it’s the last option on bottom right, in the "Plugin Settings" box), search for the "dan" bone, select the tab "cm_J_dan100_00" and have fun with the sliders.
To Add
Also some HS1 Cards used early abmx in bonemod, download a good hs1 card that uses aditional bone plugin or sliders (i forget the name) but Roy12 used it alot in HS1.(it will be a notepad file) Alot of the abmx bones have similar names
Then its trial and error, and ALOT of SAVING