It would be cool. It is very interesting to learn how the rims that were trapped inside a new crater were being removed. Mechanism itself. I have a way, but it's quite complicated to calculate. Long rendering.
As for the 5-layers... What if not 5 layers, but 15 layers? I did about the same. Huge, big, medium, small, tiny... Then again huge, big, medium, small, tiny. It is in this sequence. And you can have one more to completely get rid of artificially. In each layer, the number of craters will need to be made 3 times less (if in total 15 layers) to get the same number of craters that would be in the old scheme.