Can anyone please tell me what questions should i be asking my tarmac guy as i am getting my driveway done soon and I'm hearing some horror stories about dodgey jobs!!! somebody told me there is even different shades of black tarmacadam..Is this true and can i specify which type i want if it is?? I'm very new to this so I would be greatful for any advice.. I'm not really to worried about the money side as i think i got a good price but i do want the job done properly.. Thanks..