Let's see -- since there's an 11th level caster minimum for the creation of the body...
2xHD = 22
11+HD=22
then it advances:
2xHD: 22, 24, 25
11+HD: 22, 23, 24, 25
It looks like the 11+HD mechanic is more smooth, so I will use that. Thanks for the suggestion.
So does anyone object to the +4...