Ockhams actually has two StripZero scripts, which I think came out first.  Origionally it was only for .PZ2 files; then he adapted it to .CR2s, but I'm not sure it's written for .PZ3.

Which scripts you use depends on how small a figure you'd like.  You could just run SVDL's Remove Morphs, but then your still leaving in however many morphs you've used.

If you done resetting the morphs for a time being; and just want to get some rendering or posing done, want to test some MATs, add several figures into one scene, or otherwsie run a very light load, then by using all 4 scripts you can slim a figure down to exactly 1 morph per part very quickly.  Just do'nt forget to edit the spawnscript.py .exc file for your figure, or you'll leave expression morphs in.

I've been able to trim my 250MB V3 figure to a 12MB .ZIP file of; my .PZ3, all it's geometries, all it's textures, and everything else picked up by CollectSceneInventory.py!

You're not going to trim any more than that unless you export a new figure .obj, and replace your current, but I've never just tried that, and m sure you'd want to know what setting to use.  Maybe I'll put this on my ToDo list...