Wow...Just ...Wow. Put the new antennas together today (couldent resist). Stood on the deck connected and pointed just one of them (too big to try and point two of them!) to the second tower mentioned in the original post (8km away). This was just held by me, lazily pointing hoping to get a signal. This is what got back: I'm chuffed with this result. Absolutely wrapped in the investment I have made and cannot wait to get up onto the roof and mount these babies with the NH. Originally I had hoped to break 50, and said I would be happy. Now I'm gunning to break 100 down, and 25 up. Yippie! Now that the antennas have come to fruition, I called Optus and arranged for my $70 month to month to be converted to a $60 12 month contract, plus the $5 streaming service (unmetered netflix, etc). I ALSO added another $60 200GB contract, so am now at 400GB per month, for $125. Based on these preliminary results, that's a 56.4% increase (from $70 NBN plan to $125 MBB) in monthly costs, for a 126% increase in download (17Mbit to 75Mbit), and a 194% increase in upload (.3Mbit to 21.6Mbit). I am really really happy with the decision to move away from NBN at this stage, and I haven't even released their full potential yet!