What do you mean by that? 1000 CLAMs per address? Wouldn't people just split their coins into multiple addresses? I don't see how you are going to be able to limit the amount of CLAMs any person can stake when you have no way of knowing which addresses are owned by which people.
One node only must choose one biggest address for staking.
If you limit staking to one address per node and 10k CLAMs per address then large holders would simply set up multiple nodes.
I don't see how your scheme is either workable or desirable.
That is better for the network. The more nodes there are, the more secure the network is.