8NTX-
I had thought of doing the same thing, although the HF instructions said nothing about doing it. 'Course, I considered the lack of designing the legs to attach to the feet a pretty serious design flaw too, so it didn't surprise me too much.
I think (and hope) that my 12" nails will hold everything secure to terra firma. The spot where I put it is pretty rocky, and a fair # of the nails actually hit (and have now become wedged) in the rocks, so I don't think they'll come out without a LOT of effort.
I'm actually contemplating putting another one up to keep my implements under, and if I put it in a section of the property with more soil and less rock, I think I'll follow your lead and add some rope to the design.
Slamfire-
Good idea on the concrete blocks - I had been contemplating how to secure the bottom!
John S-
I don't think HF has a shorter version, (you'd think they would sell a "Small" and a "Large" if they sold a "Medium", right?? But then again, HF doesn't always do things the way I would either...) They do make a double-wide version though, although I can't attest to it's relative strength in wind (and it cost more too.)
They skeleton/frame would be absolutely no issue to convert - you could just leave out the 3rd sections poles and put the end "bent pieces" on section #2 instead of section #3. Course, you'd have to convert your tarp to be about 6 2/3' shorter and put new eyelets/anchors in it, but I don't see why you couldn't do it. I've never cut up a tarp before (purposely at least /w3tcompact/icons/wink.gif), but it seems reasonable to me that you could convert it.
- BTW, Thanks for the compliment! /w3tcompact/icons/smile.gif