Disliked{quote} Yes, I see that and get the point, but already to try and explore the search space of 2 systems is huge - I don't see how I could possible calculate the mining bias. However, the mining bias is based on the process. So if there is a way to combine (e.g. in pairs of 2) just an extract (lets say top 100) from all the resulting single systems (all same hour) by some method, the mining bias calculation would still be in reach. {quote} I did not mean to combine more than 2 or 3 systems at a time - but I do see and my computer feels the curse...Ignored