ICE Cache to file - changing shape geometry?

[bven]

I've created an ice simulation and wrote the cache to file.
Here's my challenge:

I want to have 2 different versions of the simulation with indentical animation, just different shape geometry.
I have one simulation that has an animated instance as the shape geometry.
I have another simulation that has a simple sphere with strands/spawn particles.

I want to render these out seperate and composite them together.

If I use "write cache to file" node in the ICE window, it caches a simulation with the shape geometry, and I don't know how to edit that information.

If I choose an animation solution with " Plotting the Simulation to cache file", I have the option to include the geometry or not, but I don't know how to re-apply that to a simulation cloud.
If I reapply it to the cloud, I lose any ability to edit the cloud in ICE.

This seems like it should be a fairly simple task:
Create a simulation with a null shape object, cache the simulation to file, read the cache file in ICE and change the shape object from the original null to sphere, cube, etc...

I'm new to ICE, and the learning curve has been steep, any help is greatly appreciated.
-Thanks

[Leo]

Simply put a set data with self.shape and your desired shape plugged in there after your Cache to file node.

[bven]

Still trying to figure out the structure of ICE, thanks for the simple solution
-B