I forgot to mention above, I put a sheet of cardboard in the case before the bike, and another piece on top of the bike. That was to add some structure to the case besides the plastic side pieces. I plan to replace that with coroplast.
There were two wear holes in the bottom of the case, one for each trip. I think airline personnel drag the case on rough concrete instead of lifting and carrying it. I have some black cordura, so it will take no time at all to glue some patches on with Seam Grip.
I will have to look for the rebar protectors. But I must say that I thought rebar is one of those things that needs no protecting. <Insert chuckle here.> That might be the best possible option.
I made no attempt to use the backpack shoulder straps and very possibly never will. I can't comment on the straps. Since I have the case, another large checked bag, a carry on, a personal item (my handlebar bag). When possible I tried to find a cart that was available to load it all on. And I also wore my bike helmet instead of packing it. See photo.
A side note: Photos of your luggage help a lot when trying to explain to airline personnel what your lost bag looks like, that is why I always take a photo of the luggage before I hand it over to them. The first time I had to describe a case that my employer owned that I had not used before that day and had only seen once convinced me that a photo would help a lot. Thus I always take photos of my luggage.
I had planned to use a bag other than that green bag for my second checked bag, but the Tubus Logo did not fit in the bag that I planned to use so I ended up using that green bag. That was stored inside the backpack case when I stored it at the hostel.
There is another option to the backpack case. S&S makes a nylon bag (they call it a box cover) that is intended to go over a 26 X 26 X 10 cardboard box. At one time I considered getting that nylon cover, I also considered sewing up one myself since I have a torn tarp that could be a donor for the nylon. But, eventually I decided to get the backpack case instead and skip the cardboard box idea, as I was a bit concerned that the cardboard boxes might not be as strong as I really would like.
http://www.sandsmachine.com/ac_box.htmI assume this source for cardboard boxes is limited to customers in USA, possibly Canada.
http://www.staples.com/26-L-x-26-W-x-10-H-Staples-Corrugated-Shipping-Boxes/product_404572Co-Motion has a good discussion of cases here.
http://co-motion.com/faq/faq_entry/which-travel-case-should-i-buy