Ok!! Thanks for the replies!!
Last wednesday I've sent another email to the track to block Friday 21 and Monday 24 of August and yesterday I spoke with them by phone.
They can wait for our final choice.
At the meantime we try to define the exact day and they have to prepair and communicate to us the cost and the deadlines of the payment.
In greek forum almost everybody of partecipants prefer Friday, because most of the people have to return at the work on 24 August.
If we'll do it on Monday (24), they have to take this day, but they work the day after and it's gonna complicate a little bit their programs (+ more stress for their return travel at the night).
So, I think that it's quite sure that it's gonna be on Friday 21 of August.
In a few days I'll modify the general program and communicate it to the track.
