I currently have 30Mbs broadband but I was thinking about upgrading to 50Mbs bb. the thing is though I my network card on my laptop is saying it has a capacity of 72Mbs. Am i right in thinking that this is half duplex so the most download I can get is theoretically 36Mbps so in reality the most I will get is 35Mbps, which means that it would be a waste of money paying for 50Mbps as i would only get an extra 5Mbps.