Slingshot must be doing some masive throttleing of streaming video from international sites.
It is basically impossible to watch a video (for example from Microsoft Virtual Academy) without video stopping and buffering every 5 seconds. The problem is especially bad in the evenings.
I have been with slingshot for over 15 years now - and this got to be the worst that I've ever had it.
Streaming the same video over a VPN tunnel through one of the free VPN providers - streams smothly.
I'm on unlimited ADSL plan.
Makes me seriously reconcider my continious commitment to slingshot.