are you spraying inside or out side.
if you spray out side bring insde and let dry after each coat of finish.
you need to hang it to dry
use the neck to hold onto when you spray the body when the body is dry then switch and hold the body to spray the neck.
be sure your spray gun is clean well. I say this because it happened to me using a dirty gun.
remeber to spray fininsh on a scrap wood first to get the hang of how your gun is working.
stew mac has some nice stains to add to your finish that will make them a solid color please check them out.
take your time