I am curious to see what you can get dude. Up and till now I have never known anyone to achieve more than what the charts say so let us know if you can get more. I really want to see what I can do as well but I have checked the VM site and the max tier I can get is M500.
If anyone is interested this is the VM 1gbit page and there is a postcode checker for availability. Atm it looks like it is very limited and the lockdown has no doubt put a dampener on things.