QUOTE(SueHM @ Apr 22 2009, 06:45 PM)

. . . why would you want to take a digital anyway, when there will be a perfectly good acoustic for you to play?
How optimistic: I have no doubt that some, even the majority, of pianos provided at exam centers are perfectly adequate. However, I have to say that there are some I remember (from not that many visits) where the only thing you could say in favour of the piano was that it had been tuned. Sometime. Probably. I particularly remember one where it was unquestionably out of tune, the hammers and the dampers seemed to be equally worn, so that dynamics were almost impossible and the tone was that of a Honky-Tonk - not really suited to a Mozart slow movement.
Being practical, whilst I personally would not wish to do this, if you really do then I would definitely ask the board about this one: For almost any other instrument there would be unfiegned incredulity if you suggested turning up
without your own instrument. Whilst it might be unusual to ask to bring your own piano, when you come down to it the arguments against are mostly not terribly sound: In particular there is the idea that ". . . part of the skill of a pianist is to play well on whatever instrument is put in front of you." Sorry to disagree Tom, but . . .
This may be true or not (see below) but even if it is there is no requirement for pianists who are taking a grade exam (as opposed to the diplomas) to be highly skilled in every area, so why should they be expected to cope with a strange piano if there is an alternative which they feel would demonstrate their abilities to better advantage?
As for whether it is true or not, at least one of the all-time greats is reputed to have played the same piano at every concert for decades, regardless of where in the world it was, having his favourite Steinway (and tuner) shipped around wherever he went, thus demonstrating that he at least did not regard the ability to "cope with whatever is put in front of you" as any relevant part whatever of his skill.