| deej
you already tried to ask the questions to the seller and he didnt know most of them.
Yes im sure new discs of any make are better than the 3mm that you have but. often cheap discs are made cheap inferior metal and wear twice as quick.
id like to see them road tested against the original brembo fitments.
Its not that difficult to make these discs with the right kit eg laser cutters a friend of mine used to have a business making steel bits and bobs and laser cutting is actually quite cheap when you have a lot done at once.
it seems that someone has seen a market for these discs and now they are everywhere.
cheap nearly always mean cheap in every sense of the word | 
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