Er... wrong.
I think you need to have a re-read....
The encrypted P code is used to avoid 3rd parties sending out false GPS signals (imagine that...) The encrypted (non-SA) GPS signal is now so accurate as to make DGPS irrelevant.
3 publicly visible posts • joined 12 Nov 2013
What complete and utter nonsense... the MAXIMUM reduction is 16% for 2 hours* which by my reckoning is somewhere around 127mbs.
To hit that you need to going over the limit between 4-Midnight Mon - Fri or 11-Midnight on Sat Sun
You would need to download more than 5GB in an hour to get the 10% reduction or 6.25GB to get the 16% reduction.
Even if you did get hit, the traffic management applies to P2P and Newsgroups.
It's the fairest I've seen.
http://my.virginmedia.com/traffic-management/traffic-management-policy-30Mb-or-higher.html
*There is an odd clause in the small print though! For a minimum of 1 to 2 hours depending on the customers usage, but this can last until after the end of peak period if the customer is a heavy user at peak.