if im correct, theres is no difference between func_details being separate or all being a single one, as long as the parameters are identical. It's purely convenience. What matters though, is the "detai level" parameters in func_detail... I'm not too good at it but vluzacn explained it pretty well somewhere... If you have a table and a candle on the table and you want both of them to be details, it's better to have them on different "detail levels", so the candle doesn't cut up the table into this spiral thing. Although from my experience, func_detail isn't that great, sometimes it's better to have small objects as real entities like func_wall or illusionary, because even though func_detail doesn't really participate in VIS calculation, it is still using up some VIS resources, something related to leafs or so, I'm not sure, since they are world brushes in reality.