I'm creating a controlled blink effect that starts at 120hz and slows to below 20hz over time. I need to do this in a 120fps comp to get the granularity needed for the effect to work. I have the expression I need to do this and have tested at 60fps – but I can't figure out how to do it at 120fps and output a 120fps master. I wish I could ask Ang Lee who just did this on his latest movie! Anyway this is not that kind of project... But is it possible? If not in AE, what editors support a true 120fps timeline or composition?