I have a couple of questions... Q. Is there really a difference between duplicate and multireplicate? Isn't multireplicate just a quick way to may copies so you don't have to do it one at a time? Q. When you want to literally duplicate the tree because you need an exact copy of it, is there any way to work around the artifact problem? Sometimes the effect I want a tree to have looks better to have multiple copies of the same tree rather than to increase the leaf count. What I've done so far is to change the trunk(s) of the duplicate(s) to transparent but that also takes out the branches which I'd rather not do. (I've been thinking that the thread earlier where someone had a transparency that faded out towards the bottom might be a solution to this particular problem.)