I would say its about one of the few absolutes in this area. However what isn't absolute is if the amount of interference is significant or if the effect of "its" absense does not cause more interference than "its" presense. Thats where common sense and judgement has to be applied. But as a absolute starting point I agree with Dr BH, it all matters, but to paraphrase, all things make a difference, but some things make more of a difference than others.Originally Posted by nat8808
