I've got it up to 84....
And I seem to have got the beta site which is hosted on a friends local connection running (fiber) as fast as the VPS that doesnt have the advanced caching stuff...
however even though I have tried the various non-blocking methods provided for the JS - JS, DEFERED and ASYNCH... it still came up with the message that I needed to use non blocking methods...
It also doesn't improve my google page speed... even though it improves my pge speed... but certain elements don't load properly (like buttons, or my ticker.. fine once loaded and refreshed, but first load they don't work)