Now I dont want to turn this into a big arguement, just some advice plse...
My dd's school will not authorise holiday anymore.. 
We have booked our holiday in term time as my dh could not get time off in sch hols due to work, due to being new there and holidays already taken up. So our original dates had to be changed.
Now we carefully tried to consider as much as we could and felt that the first 2 weeks of Sept would be best as would only need 7 days off sch.
Both our dd's will not move classes, SATS are not too close, and is only start of term so first week espeically will only be settling into routine and book naming (I could be wrong....
) plus both dd's seem to be doing well at sch too.
To get this authorised, I am hoping dh will get a supporting letter from his manager confirming that he cant take the time off when sch needs him to but do you think this is enough??