I tend to cast 3000 at a time using 2 moulds, and I have found that if I lube the pins, pivot, and sprue every half hour then things continue to go smoothly. I don't bother to make sure there are bullets in the mould, but I use a very lightly lubed q tip so it works fine. I have moved my lube into a different bottle with a very small pour tip as I have knocked my bottle over twice. Be nice if Mr Bullshop would change bottles. This stuff works so well that I have 2 extra bottles sitting in a drawer just in case The Bullshop ever decides to stop making it. Haven't tried it as a lube yet as I only shoot BP.