[big_ba*tard]

I get full download speed 99% of the time if it does struggle i change port seems to work.
Depends if your using newsgroups or bitorrent(worst way)
But if i was you and i would downgrade to 2meg as it's not worth paying the extra if you get 5 meg most of the time.
Hopefully ntl will just offer a 2meg unlimited say with 512kb upload and 10 meg 300 gb download limit with 1mb upload.
At the moment i pay for the 10mb but i am thinking of dropping to 2mb as the upload is more important to me than download and 512kb is not really that good when paying £35 a month.