wow, your's has stood up better than mine has - when I took mine out, it had been pinched so tight in some places once it passed the battery etc taht I couldn't see through it! Its easy enough to reshape though but I was fed up of reshaping it all the time.
I actually bought two lengths (one as a spare) but the second is sitting unused.
Having said that I think I'll try some of the smooth now that you have linked to.