You can definitely tell the Blues are more fluid in the way the F/A-18's behave compared to the "stiffer" flight control system of the Vipers. Cupping, spacing etc is all part of any show and really showcases the difficulty these pilots go through every show at a different show site, different weather, air texture etc.
Did you notice the exit profiles for the Solo's after each pass? One of them (there are a few variations) goes something like this:
- 45 degree bank towards the crowd.
- Pull! 30 degrees nose high - Float.
- Roll wings level. Hesitate.
- Roll Left Inverted. Hesitate.
- Roll Left 270 degrees to Knife Edge. Hesitate.
- Roll wings Right to level once again and CLEAR.
Sounds like a bunch of fun, yeehaw! Btw, you can hear Dino teaching Merlin this in the "Year in the Life Of" DVD during a training season briefing. It may look like they improvise, but this is practiced and mastered too as anything you see in the show!
The Blues use less calls and more cadence typically with a few distinct pronunciations of a syllable in the right word compared to the Thunderbirds who "spell it out" in contrast over their comms. It's highly likely the scanner could have missed a bunch. Happens all the time if you're monitoring two or more freqs and in the instance you were talking about the Solo's would have just released their brakes and powered up for takeoff, so the scanner could have jumped freqs back and forth twice and basically missed both calls at worst.