Like I said, it was way too fast for me ... but I did it.
For the most part, I will ride 10-20 km/h over the limit on a highway and that also depends on the flow of the traffic... meaning, if the limit is 100 km/h and the traffic is doing 130, then I will be doing 130.
I also do not like following people (cages) so if I'm comfortable at 120 and come up behind a cage doing 115, I will pass them. I like the open road ahead of me ... do not like looking at someone's bumper and having to adjust my speed based on whatever they are doing .... speeding up, slowing down, dilly-dallying around a corner when there is no need ... I will pass them first chance I get ... and then settle down to my own comfort level which again is 10-20 over.