I understand your thinking and almost broke a statiscappilary at first until I saw there would be no real difference in the end other than not being as challenged because of how many other factors are at play. Changing +/- 10 by +/- 3 isn't really a shift depending on how you want to be bound by the same domain...thank mu Markus for explaining it better. Just want Dane to know it's a plus that we can adjust these domains, but it might not change the game, if that makes any sense.