Just curious, what were 4TO and 4AY like during that time? Was 4TO a bit older skewing than 4AY? I seem to remember 4AY used the same jeans zipper logo as 4IP so I assumed they were a bit more Top 40. Then they converted to 4RR?
During the same period '75 to early/mid 80s I was listening to 4MB now sadly also a bland Triple M :(. Unless I was at my grandmother’s beach house where I was forced to listen to 4BU.
The hip station in the early 80s was 4GY for me 