They've set the bar very high.
If the booster-cores now don't land perfectly synchronised like an Olympic ice-skating team, then I'll be extremely disappointed.
How long do you reckon before the SpaceX lads are channelling 'Top Gun' and are asking permission to 'buzz the tower' at KSC with one of the landing components?
https://www.youtube.com/watch?v=vdHBsWXaHN8