How long will it be before i get my Army selection date ?

Its been 3 days since i passed my 3rd formal interview and im not starting ot get really excited because i know things will start moving along now, How long will i be waiting before i get the letter through the door with the train tickets ? My last interview was held with an NCO and he said because ive done really well with all my tests so far hell bump me along abit ????