Ah ha, just found out how to access particles as a group as well as individual particles and their attributes through Mel/Python.
This means I should be able to rewrite the system to use the particle generation method (i.e, the user can add the particles where they want on screen) and also use the particle caching system that particles have access to

Edit: This should also allow me to use the particle object (hodling all the particles) as the keyable object for changing velocity and separation etc...

Cool!

Si