Thank you for linking that post; I learned from those photobucket pictures and I'm always finding ways to add to them, and I would recommend everyone to memorize key aspects of those pictures so that they understand warding more.
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Well seems like you've gotten a lot of tips. Not sure if this has been said but you can ward pretty accurately over walls that you don't think you can ward over, like ones that you can't flash over. It's useful if you don't want to venture forth into the jungle alone. It takes some practice to get the placement right, but it's worth it.