I've got 2 from EZup. Exact same size. The sandbags they provide don't help when it's a bit too gusty. The water bucket method sounds like a winner. I'll have to try that next time. I place mine in the same manner as you have in the pics but early morning or later in the afternoon you still get some sun.
Joe, I had purchased both mine for about $1150 at the outlet store in Colton. You didn't find any deals there?