This is the only  V4 I at least occasionally use: V4toSp3 and V4toSP3LOD

V4toV3 resculpted to SP3's bodyshape.

Re-rigged to use SP3's joints.
All the "Joint scaling Magnet" stuff went OUT
All the "Morphforms" went OUT.
Already bends better than V4 (See shoulders) but will be more improved later.

Uses all of V4's headmorphs
Uses all of SP3's bodymorphs.
Can wear SP3 clothing.
Much lighter than V4
Much more rugged than V4
And most important, she looks like an actual human being. :-)