Keep in mind that you want to ensure that you have the poles touching the ground and not attached to the pop up unit.
There is generally two ways to handle the corner poles. You can have them perpendicular to the ground or you can angle them back and attach them to the pop up. You need the poles to point straight down to the ground to provide support for the awning when you stake it down. If you do not, you may put too much stress on the fabric where it attaches to the roof.
2006 HW256 (previous pup)
2013 Chevy Tahoe
Equalizer WDH 1000#