I'd like to use one or more turrets like this one, but I fear they'd cause performance and lag problems due to collision calculations. Then again that's a problem with turrets in general, at least in greater numbers. So my question is: are spherical turrets in a hemispherical recess much worse than regular turrets or not? It would be great if some people with multiplayer experience could give me tips before I invest a lot of time in building potentially useless turrets.