It seems stable for now. Biggest bugs we ran into was a cannon firing a second time while rolling back, shells hitting an object and deflecting straight down, sometimes cannons couldn't be moved, when there is one round left in the limber it wont let you pick it up and guns sliding around. One thing we really need is fine control over elevation and windage, you barely tap the key and raise the barrel quite a bit. One other thing that would be nice in a bounding box for the primer. When you move to the position you think you need to be to clear the wheels you have to prime again, its pretty annoying.