Sounds similar to the ones I mentioned earlier, same dimensions and same price, have to say that it's been absolutely fine... Not LMF standard, but does the job well with my knife spine as a striker. Had the cheaper stuff and some of those you mentioned- had a Webtex and an Exotac fracture when used.I just ordered a 130 x13mm rod from eBay, £11 isn't a fortune to lose if it's crap.
I could be out on a limb here but I'm going to suggest that the striker is important too. Used many different rods and the strikers always seem to be the et down point.
I got a nice damascus one from USA, can't remember the name and recently made some myself with antler and tool steel. The really hard steel and well fiished 90* edge helps greatly in producing the shower of sparks.
your quite right but robs not a stranger to a well made firesteel scrapper
I just ordered a 130 x13mm rod from eBay, £11 isn't a fortune to lose if it's crap.