I have an AstraWeb account, and yes there are times i can confirm, without a shadow of a doubt, the VM servers are being crippled speed wise, and a massive increase is seen using the AstraWeb SSL connection...
Now, to play devils advocate for a second, yes, my tests and conclusions are based on the same file set, downloading first from one connection then switching to the other mid way and then back, in order to change server/service you have to disconnect and reconnect, a small difference can sometimes be seen when you do this, also this test does not prove that the service is being traffic managed/shaped rather than a server slow down on the VM newsgroup servers, although the outcome is the same for the end user, connect via VM server, get a service below what you are paying for regardless of the amount you download, just purely based on your method of download, Switch to an SSL connection and you see an increase immediately.
Throttling on certain ports is definitely being enabled too, based on the many many complaints/reports posted around the internet, a quick search should produce enough results to make google groan !
And yes i agree with whoever said the indian call centres are counter productive, and create nothing but contempt for VM
btw... xiphrex, which BB monitor is that your using ?