If you didn't want me to respond the way I did then you should have posted a link to something that disputed what I said instead of something that reinforced it.
The original poster already got all the help he needed from knuckle_head. He explained what he should be looking for and why. No offense, but I don't see where you've helped him at all. You've made recommendations, but with no explanation as to why. Knowing to use heavier gauge strings is pretty much a given unless you're brand new to the scene.
Uh, yea, it does dispute what you said.
Also, read the OP, he is asking for recommendations. I gave him one, because I play in a lower tuning also and these are the strings that work for me.
As for DDT's not being for drop down tuning, I would like to see what proof you have as to disprove that.

