I think when your feeling strong and due to the hugely competitive spirits of triathletes, and id never ever knock one cause I was one, anyways they like to put the hurt on other athletes, which is a pretty good mentality to have to be honest, but even though you know your feeling strong, you should have etiquette and like you say, by all means throw down the speed, but in a gradual/efficient way.
I didnt feel smooth, I felt like a scared bag of spanners on every sharp turn. Was a great group of riders fair plays, especially the guys who smashed pbs.
Ps, i got kom for loop due to being off the back by 3 or 4 seconds after a turn where it was me and 3 or 4 others distanced after a roundabout, I jumped back up to all you guys and obviously was a little faster overall on a lap. Very rare I get koms on the flat.