Thanks so much for your detailed reply! Wow, that's interesting. I followed almost the same process as this on my first try and got 176mg and on the 2nd pull, I got tiny, almost nothing, but I didn't do the 1hour mix with the fuel. I think I did the first for a reasonable amount of time, but the next pull was quick, crazy to think there could have been loads more that I missed, I better be more patient next time. I would be pleased with anything close to 1% at this point; thanks again for the advice; I'll give it a go!