Corey, thanks for posting the video. Any chance you could post photos of where you zippers align in respect to the lower frame top rail? Do they indeed come down past the top of the aluminum top rail, leaving no opening?
After watching your vid, I rechecked mine and had it cranked up about the same tauntness as you. I even backed it off a bit just to see what difference it made, and the tauntness actually does not affect the height of the zippers in respect to floor.
This one has me really perplexed. Here is another pic from the outside which shows not only is the grey fabric stopping the zipper from closing all the way, but even if the grey fabric was not there, the other side of the zipper is not long enough to reach past the frame rail. There is a good 3/4 inch of unzipped opening on both doors on both sides. Only thing I can figure is:
1. This is the way the tent is designed
2. Manufacturer defect on this particular tent with doors sewn in a bit off and/or original tent fabric not secured low enough to the bottom base leaving zippers a bit higher than floor
3. Original owner removed the entire tent fabric from the top and bottom fiberglass sections then cut about 3/4 inch of fabric the way around the top of the tent fabirc like a bad bowl haircut, then reinstalled the tent to fiberglass top and bottom with new rivets on top and clips on bottom. This is only way I can comprehend how the zippers can be left too high from the base, leaving a good 3/4 inch gap on ALL DOORS SIDES.
4. I'm and idiot and have missed something obvious
I think option 3 is a stretch - leaving me with option 1 and 2 to ponder. Option 4 is always a possibility
Hoping someone can make sense of this and help me figure this one out