So I have a few questions about the file. The thing is that with luigi I have Waluigi, Baby Luigi, baby Waluigi, and Jimmy t. But my question is they have different motionetc files. Is there anyway to have all three size hacked at the same time? Maybe some how have three different motionetc?
I also think I saw a texture one-slot size edited without a motionetc file?
The one slot size mods are done by renaming a bone (Yrot commonly) in the model and then adding a custom size for it and pasting it in every animation so you could just copy the edited bone animations from all motionetcfiles into a single one. This might help
http://forums.kc-mm.com/index.php?topic=8045.0 also someone else asked, you can read and see if it helps http://forums.kc-mm.com/index.php?topic=28564.0
For the size mod without the file, maybe it was a vertex edit, I don't know, just guessing