I know what you're saying and apply that to builders all the time, but when Sean does this I really think he ends up with something improved or refined for a particular type of player. He'll use the previous R&D as a launchpad. I used to think the original Zendrive was perfect for me. It still is amazing and it's not leaving my main board, but now I have a White Zendrive that is even better for my set-up. All of the Zendrives Alf and Sean have done are quite different to me, way beyond a box swap. Sometimes the new version isn't better for me, but others find it to be the best for them.