I'm just sat here wondering what the OP will do with the theorietical 2-4 Mb he assumes to be missing on a rock steady 74Mb connection.
Haha it probably won't make a lot of difference, but I just wanted to make sure we're getting what we pay for! I have to say, 6mbit is quite a lot when taking into account our previous internet connections - If i was 6mbit short on my 30/6 fttc I'd only just be getting the uk's 24mbit definition of "superfast".