The bottleneck I refer to is the one's that occur on localized and ISP networks due to congestion.You'll get bottleneck only if you use slow HDD drives. Go explain your stuff to old grandma. With mentality like yours you'll always use slowest internet connection. Anyway. Good luck. I just have to stay with this crap BT until i can get normal fibre optic broadband if that ever gonna happens.
Anyway, you know best obviously, I'm starting to see why your issues aren't getting resolved if you have an attitude like the above.