I think you're right since the editor placed the sprite at the end of the rom, it may have not added those two bytes. I'll look into those bytes, they are most likely related to mold data since the editor doesn't go over molds (assume FF5 uses molds).
Alternatively, I could elect to instead replace the exsting sprite; however, if those two bytes do in fact have to do with mold data, then it wouldn't matter unless I'm replacing the exact size sprite with that of the same size.
Replacing the existing sprite didn't work; however, I did find this:http://slickproductions.org/slickwiki/index.php/Squall:FF5_Monster_Graphics#Form
So if you look at the end example of that "Steel Bat", that shows exactly why my sprite is showing up partially. I believe it's using the existing "form" data. I really wish that editor would allow us to go a step further and choose the new sprite form data lol. That'd make me greedy though, so I'll keep at it.