You found the one resource I have used, I would just pay the 10$ and get the info.
drywallschool.com rocks!
From the picture it just looks like you thin down the mud, roll it on, then use a drywall knife, then start marking it from the top down.
drywallschool.com rocks!
From the picture it just looks like you thin down the mud, roll it on, then use a drywall knife, then start marking it from the top down.