Hi - I know that for HD quality streaming it is recommended to have at least a 2 mb/s upload speed (or higher) at the site of your SlingBox. However, I imagine this is just the minimum upload speed for potential HD streaming. What is the approximate upload speed ceiling at which a higher upload speed will no longer improve streaming? I have an average upload speed of 6 mb/s at the site of my SlingBox. I'm considering whether I should pay to increase the upload speed. Obviously, I won't do that if it won't really help. Any insight would be greatly appreciated. Thanks.