Hi All, What is the preferred way to make planes, positive or negative, dynamic or static. Any thoughts, insights would be deeply appreciated. Any pros / cons for both cases? Regards, Zafar Bhatti Design Engineer Whizz Systems Inc. Office:(408) 980-0400 Ext. 112 Cell:(408) 569-0517 <mailto:zbhatti@xxxxxxxxxxxxxxxx> zbhatti@xxxxxxxxxxxxxxxx