Asmi Hi, I am not sure if you realize it, but your steeamtnt is excactly the same as Thomas B. Olsen (not related to the Olsen twins), wrote about two years ago – I am not quite sure if there is a original source, but you might be able to find his article somewhere (lack of Google-skills, does that I haven’t found it). If you find it, please post it here or PM me. Regards, Thomas