#3DS2 crashes
I've found the same thing – the boolean operations work best with simple
objects. I found that they sometimes result in stranded vertices – if I cut
a thick disk in half by subtracting a box from the full disk I sometimes
get a vertex or two floating out in space.
The most annoying thing that has ever happened with a boolean operation is
that I do a subtraction and my system reboots! It has only happened a
couple of times, but it is a **real** surprise when it happens. It has only
happened when I've done a number of boolean operations on the same part.
Chris