I made cut rounds again, but didn't bother trying to roll the dough into a cylinder and cut it and instead just ripped 60g chunks off, and they really rose up this time! I think I was just mushing them too much last time (they were totally flat).
I guess they're just "rounds" now rather than "cut rounds". 😛
There's this British historian and TV presenter Ruth Goodman who's done a whole bunch of docos about life on farms during various periods in history. She did one series called "Edwardian Farm" and during it they made a thing called "cut rounds", basically like a savory scone. I found a recipe and made them, and while mine didn't rise much, they're REALLY yummy! The recipe I followed was this one: http://raspberryandchipotle.blogspot.com/2011/07/cut-rounds.html
I'm not remotely a person who knows about baking so I don't know why they didn't rise (needs more baking powder maybe?), but they WERE nice and moist inside and not like hockey pucks!