First, it's worthwhile to mention that the reason why I've used this program so much (certainly more than 100 hours) is because it's very good.

That said, I wanted to compile a list of the most common problems I have, as a user, and further, to sound out how you guys feel about me going and writing some patches to fix them.

1. Invalid NURBS surfaces. My intuition is that most of the invalid surfaces arise when you have two solids, and the edge of one solid rests exactly on the edge of another solid. The fix here is usually to offset the constraint so the solids slightly extend into eachother, which is a pain.

Obviously, I'd like to be running on more than intuition here, so I'd like to try and characterize and collate what geometry leads to invalid NURBs,

2. It's often hard to see the geometry you're interested in. Allowing users to hide selected objects would be really nice here.
3. Variadic selections (I'm aware this has been mentioned before) would be a huge timesaver.

Any thoughts, ideas, stuff I've overlooked?