try a prussic knot(3 loops instead of 2) on the foot end for shortening the triangle ,it works well for me. That way when you need to close the doors remove the foot end spreader bar completly,and slide the prussic down the triangle toward the hammock. Now you have no triangle at all. I still found it very confy without having to alter the origional triangle. When you no longer need the door shut slide it back out and put the spreader bar back in and your back to normal.
Im 212 and had no issues with the stress on the head end spreader bar while doing this,its alot warmer too.
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