well, I'm no programmer......
I think it's great. Has a ton of uses since most FPS games use ragdolls these days!
I know the Number of dolls has limitations, but (and I'm guessing) Doesn't the number of the model's polygons also have a part in the limitations? I think that you should set a 'standard' for your testing. Such as use a model with x amount of polys.
The random stacking of the ragdolls and their various angles should make great averages of visible polys.
Keep working on it, I'll ned ragdolls eventually

Jason