The company I did my initial endorsement for the Hawker (yes I realise that it isn't in the heavy category) used a scenario that was most likely to set up a jet upset.
They would use wake turbulence from a heavy overflying to set it up. We'd get a TCAS alert (and have to respond) and then get the jet upset. First time I had seen UA's set up like that and I thought it was very effective.