"The BD alpine carbon poles are very burly, I wouldn't worry about them being a weak point in your shelter."
The BD Alpine Carbon Cork poles are ultra beefy for a carbon pole. Short of severe user error (ie. have no overlap between sections), you're extremely safe with these. I'd suggest going with a lighter pole personal. Locus Gear has some new flick lock poles coming out that weigh ~12oz (vs. 16oz for the BD ACC poles) which should be a nice compromise between the gossamer gear LT4's and something beefy but heavy like the BD ACC's.
The GG LT4's are great for holding up a shelter too. I've snapped a couple during off-trail mis-haps, but I continue to use them because they are so much nicer to hike with and short of me landing on them, they hold up just fine. I would like flick locks though and I can see the benefit of a 10-12oz set of poles for off-trail/snow use.