Took ages to get the 'middle' section working to bring down from a mostly symmetrical 18 to a less so 16! Are there Gold (Guilder) savings? Probably... but I doubt I can easily find them without major rearrangements!

Basically 3 pipelines, each of which uses the wasteless algorithm I worked out. For every 18 inputs drawn, 8 go to the left and right pipelines respectively, each making 4 products. The middle area (almost an area solve in itself!) takes 2 inputs of every 18 and makes 1 product during the same time. This works out to an average rate of 16. I am buggered if lower rate is possible, because where do you get enough material? Any faster metal promotions would leave waste and as far as I can see I am drawing inputs as fast as possible...!

MVP (Most Valued Piston) is the piston nearest the output, which not only does a lot of work making the 'middle' pipeline product, but also helps output those made by the right pipeline as it passes overhead!