This isn't a perfect analysis because its not over the same time period since HB hasn't played much in March, but if we look at his Feb game logs, he has an average game score of 8.18. CB in his 8 games in March, where we all acknowledge he's been better, has only gotten above that mark 3 times and and his average is 5.1. Part of this is a minutes mismatch as CB has averaged 15 in March and HB averaged 22 in Feb but even with that they're pretty much the same. Game Score isn't a great metric, but it allows us to compare the two against each other since both were playing reserve roles in these months.
I want CB playing more as the year goes on and I hope he's a meaningful contributor. He's got way more potential and his ceiling is much higher. But just understand that he is NOT there yet.