So my friend who knows a lot about NZ's internet circuits, pipes etc. Told me to avoid BigPipe for UFB because they have one of the worst contention ratio for international traffic out of all of NZ's ISP.

He said typically most ISP have a contention ratio of 10:1 to 23:1 and that BigPipe has a 50:1 or even high. 

This is how they [BigPipe] are able to keep there cost low.

Is there any truth behind what he is saying? I could not find and evidence of this and I don't think even published on ISP's websites.

Thanks.