If I remember correctly, the lady who took my S1 said that they weren't marked by a computer, hence why we didn't have to fill in the dots for our name.
If they do use something like a crib sheet or hand mark them, it must be a horrid job and I completely understand why it takes so long, lol!
Although I am not complaining about how long it takes, I imagine even if it was only an hour - that hour would be so tense.
I look forward to getting my results and am well prepared to wait another week!
S=D/T calculations are the key of a lot of the questions so do em!