OK: There is a website where all members freely post any code in any language that they have developed. Ordered by language and theme. Listed by download frequency. We share, we win. I mean - surely someone else has written a custom backtester in C# that can run off any data format. But here I am re-inventing the wheel. We all re-invent the wheel - our resources are limted to ourselves. That makes us all weaker. Broker and Feed APIs with our own custom systems. This is the only future I see. The software vendors can stick it where the sun don't shine.