I must be different
I never draw earlier, I wait until I can shoot the deer. Meaning if they do get spookie and stop in front of they are in range and I can shoot them.

I never pull back until I can shoot the deer. Meaning I pull back, within 3-10 seconds I am shooting.

I do this for two reasons

1. who knows what a deer is going to do 40 yds out
2. who knows what else will come in In 97 I was going to shoot a nice doe, as I waited a big buck came by, so I shot him.

I never want to tip my hand early, is the best way to put it.