On the ground sheet suggestions... I typically don't use one and prefer not to start again. I really don't want to carry the extra weight and I have generally always had something other than the floor fail first. I always figured that I would re-treat and/or patch the bottom as needed until eventually I'd start using a ground sheet when the bottom was really trashed. The thing is that, other than a very rare patch, the floors on my tents held up fine.