I'd like to piggyback onto this if I might. I think my question fits the discussion.
My concern is over the speed of the servo. The one used in the cool zip-zap tutorial seems nice, but in the video I think it is way too fast. My research indicates that in the absence of some computerization the servo speed cannot be properly slowed down (that is, simply adding resistance can have a negative effect on the servo as a whole--it does not simply slow it down). I have some electronics experience, but zero experience with servos and servo controlling.
I'm not even certain what my question is yet. It depends on whether or not servo speed can be easily slowed. If so, how? If not, what should be sought out in servo specs?
Thanks!