yes I agree anodised blue before engraving would be the best,
polishing it was just a bit of a **** really, this is as shiny as it will ever be, i give my bikes a hard time so it will be scratched and dented in no time LOL
the eps file is here www dot brandsoftheworld dot com/logo/hbg-0]HBG | Brands of the World? | Download vector logos and logotypes