I spent a whole week (couple of hours per day) building this gun - I built and rebuilt each piece using the zmodeler sometimes up to ten times. I am starting to get the hang of it. It's still not done. I haven't even finished all the parts. There are easier ways to build it - but I want to learn the zmodeler. But I did learn a couple of things in case any one is interested - Half of my time redoing things was do to constant corrupt files. I've often had files get corupted when doing hard surfaces. I finally figured out the main culprit (I think). If you undo after duplicating or merging tools it can corrupt the undo file - it doesn't undo the merge or duplication but it can corrupt the history. The fix is to load without the undo history - skip loading in preferences under undo. This is monumental for me! Maybe this is obvious to everyone who uses zbrush - but this is a huge fix for me. The other hit the n key for a pop up of your subtools that can be selected - I never knew that - or at least I never thought it was useful until now when I have 30 subtools. Anyone figured out who's gun it is - I added the logo...