From critique, I learned that frequency was the oddball of the group. It didn't fit compositionally, size-wise, and many other things. So brought back to only using the word once, no repeating or crazy slopes. It is set off of the baseline to convey the idea of the slope and ups and downs of frequency. The type itself though is static, it is sharp with many zig zags that come off of the original stroke of each letter. I think that these three as a set are much stronger than then the first set, and it was just a matter of getting that oddball fixed.