> If you are going to need to optimise with performance metrics anyway, then why not stick to just the official defaults (unless the official defaults are non-f

> If you are going to need to optimise with performance metrics anyway, then why not stick to just the official defaults (unless the official defaults are non-functional, is that the case?) Well, why don't you do the research and tell us? In my 10-15 years of dealing with official defaults of many programs is that they do work, but in 90% of cases they are overly-conservative.