maxburner - was that at '250 feet' though? I certainly saw a lot more then 800 kts on the digital groundspeed thing at medium level.
If you managed to get 825+ out of it at low level, you can't have had many tanks, 'winders or anything else on, I guess. But "Respec' " if you did!
And yes, 825 was waaaaaaaaaay over any clearance limit!