Primering car in garage attached to house

Nothing you can measure. Medium wet coats. Enough to see it on there, Not so much that it runs. It will take a while to get use to the gun but primer is the best way to learn to shoot.

Okay, and yes I figured that since it will be sanded anyways. I will be able to tell if I am to close or pressure is too much etc.

Do you think I will need a long super flex sanding board or should my set of 7 dura blocks be good?