It's symmetrical or very similar. I compared my stakes to that account (I have a decent amount of TRI but broken up over different addresses) and I get a similar rate. There are more variables to consider though since if you don't run the wallet for a while you will have higher weight for a period, network weight fluctuates, etc, but in my experience there doesn't seem to be an advantage for having a large amount in one address based on the way this coin stakes.