In my own aircraft I can do the checks from memory and it is quite quick, but in cold weather it takes a bit of time for the oil to reach the magic 50deg C. In hot weather or for the second start of the day, it is possible to get airborne relatively quickly, provided I have done my pre-planning and have a pre programmed SD card to set the EFIS up for the days flying.
I like to be a good citizen and modify my SOP to help out if the airfield is particularly busy, so I will make a departure from an intersection etc, but with an aircraft which only requires 150m to get airborne and has a high RofC I am not taking much of a risk. In a more traditional machine I would be much more conservative, particularly if I did not know the maintenance history.
Rod1