Thanks Cell I'll try working on that. Also I was not aware that BSP was faster closer to center. Very important.

So far I'm experimenting with one of my buildings but I can't get LoD to kick in. I know I'm doing something wrong. I load up the building as it's own map and save it as name_01 02 03 04 etc. correct? What I did was group the blocks in WED and "save as". Then I open that file and recompile it?

Thanks in advance.

Mark