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Thanks for this. I understand the principle but unfortunately I need the clones to intersect initially so they form the surface of the sphere. I then need them to collapse without exploding outwards so they form a non-intersecting pile on the floor. (Appreciate this might not be possible using rigid bodies as it's going against the laws of physics!)

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The issue is that your cloned object has its axis in center. Convert the cylinder to polygon object and move the axis at base. This will prevent them "exploding" since the will not intersect at start of simulation.

I'm trying to make a bunch of intersecting clones (rigid bodies) collapse from their cloned form (a sphere) onto a floor. As they are intersecting in their initial state when they become dynamic they explode outwards. Can anyone suggest a method of making them simply fall to the floor when the rigid body tag is enabled? I've spent a lot of time playing with damping and follow position / rotation values, along side increased gravity forces but am struggling to get the 'collapse' effect required. https://www.dropbox.com/scl/fi/5z3c0xm0tggb6dhbyeq79/COLLAPSE_TEST.c4d?rlkey=kwgqd8qoxz112xmevdeaq0ge5&dl=0

We've all been there. Teased by reels like that you try to learn Houdini just to find yourself in an overly complex madness. But it's a powerhouse for sure if you know it. I prefer C4D's approach to things more. You get there 5x faster in 90% of cases. But the last 10% of Houdini you never reach ;)